PLS CHECK IF MY ANSWER IS CORRECT! 40 POINTS!

Question:
A circuit (picture attached) is shown. If Light Bulb A is removed, what would happen to the brightness of the other light bulbs (B, C, D)? Assume the resistance of each resistor to be R, and the total voltage to be V.

My answer:
The total resistance before A was removed:
[tex] R_t = (\frac{1}{ (\frac{1}{R})+ (\frac{1}{R}) + (\frac{1}{R }) })+R = \frac{4}{3}R [/tex]
The total resistance after A was removed:
[tex] R_t = (\frac{1}{ (\frac{1}{R})+ (\frac{1}{R}) + (\frac{1}{R }) }) = \frac{1}{3}R [/tex]

Total Current before A was removed:
[tex]I = \frac{V}{R} = \frac{V}{ \frac{4}{3} R} = \frac{3V}{4R} [/tex]
Total Current after A was removed:
[tex]I = \frac{V}{R} = \frac{V}{ \frac{1}{3} R} = \frac{3V}{R}[/tex]

Current of Light Bulb B before A was removed (and C & D because they have same R and V as B):
[tex]V = V - ( \frac{3V}{4R}R) = V - ( \frac{3V}{4} ) = \frac{1}{4} V[/tex]
[tex]I_B = \frac{V}{R} = \frac{V}{4R} [/tex]

Current of Light Bulb B after A was removed (and C & D because they have same R and V as B):
[tex]V = IR = V - (\frac{3V}R} R) = V - 3V = -2V[/tex]
[tex]I_B = \frac{V}{R} = \frac{-2V}{R} [/tex]

So, since [tex] \frac{-2V}{R} \ \textless \ \frac{V}{4R} [/tex], the brightness of B, C, and D decreases because the current of all of them decrease.

Answers

Answer 1

As someone who is taking an electrical theory course in college, your total resistances and total currents are definitely correct. Furthermore, your final statement is correct (given that your lightbulb currents are correct).

I'm not completely sure if your current in the lightbulbs are correct because I'm pretty "Brain-ed" out from the semester and electrical theory isn't my best subject. I'd double check with some friends on those two statements.

I think the trouble is that I'm having a hard time following your logic. Overall, it appears you do have logical reasoning. Hope I helped a bit!

Related Questions

Wendell is a great surfer, but he never considers surfing as a career. Instead he goes into accounting, for which he has no real passion. Wendell is exhibiting

Answers

The correct answer is self-imposed limitations.

Self-imposed limitations refers to restricting one's self from activities or situations, which you have made and accepted for your own sake. In the given situation, Wendell is already good at surfing yet he restricted himself of it and went to accounting.

If the grasses on a 100-hectare area of grassland grow at an average rate of 1 cm/day, the average volume of grass that is added to the grassland each day is _____m3. If the density of the grasses that grow in the grassland average 400 kg/m3, the NPP is approximately ______ g/m2/day or ______ g/m2/year

Answers

If the grasses on a 100-hectare area of grassland grow at an average rate of 1 cm/day, the average volume of grass that is added to the grassland each day is 10,000 m3

If the density of the grasses that grow in the grassland average 400 kg/m3, the NPP is approximately 4000 g/m2/day or 1460000 g/m2/year

Equations:
100 hectare (x) 10,000 m2/hectare = 1(x)106 m2 (x) 0.01 m/day = 10,000 m3/day (x) 400 kg/m3 (x) 1000 g/1 kg = 4 (x) 109 g/day / 1 (x) 106 m2 = 4000 g/m2/day (x) 365 day/year =

Which of the following statements best explains how the Hubble Space Telescope has made outer space exploration easier?
A. It has provided clear and accurate pictures.
B. Its high-gain antenna produces magnetic fields.
C. Its magnetometer sends data back to Earth very fast.
D. Its photopolarimeter measures the charged particles of solar winds.

Answers

The answer is A. It provided clear and accurate pictures.

The answer is it provided clear and accurate pictures.

Explanation:

"In its first ten years of service, the Hubble Space Telescope has provided more than 330,000 pictures of over 25,000 celestial objects. These images are exceptionally clear, in part because the telescope can be pointed in one direction of the universe in an extremely accurate and stable manner."

True or false some job skills are used for success in many careers

Answers

Hey there!

"Some job skills are used for success in many careers".
This statement is true. This is because job skills can lead to a successful career.
For example:
You work at a bakery, and you can end up getting a cake decorating career.

Hope this helps you.
Have a great day!

Below is a summary of the educational degrees of four applicants to a hospital. The hospital is looking for a Radiologist, an Orderly, and a Biomedical Engineer.

Summary of Degrees for Applicants Applying to Hospital Careers

Applicant 1
High school diploma, bachelor's degree

Applicant 2
High school diploma, bachelor's degree, master's degree

Applicant 3
High school diploma

Applicant 4
High school diploma, bachelor's degree, doctorate degree

Which applicants would be best qualified for the jobs based on educational level?
Applicant 2 is qualified to be a Radiologist, applicant 1 is qualified to be an Orderly, and applicants 2, 3, and 4 are qualified to be Biomedical Engineers.

Applicant 3 is qualified to be a Radiologist, applicant 2 is qualified to be an Orderly, and applicants 1 and 4 are qualified to be Biomedical Engineers.

Applicant 1 is qualified to be a Radiologist, applicant 4 is qualified to be an Orderly, and applicants 2 and 3 are qualified to be Biomedical Engineers.

Applicant 4 is qualified to be a Radiologist, applicant 3 is qualified to be an Orderly, and applicants 1, 2, and 4 are qualified to be Biomedical Engineers.

Answers

Applicant 4 is qualified to be a Radiologist, applicant 3 is qualified to be an Orderly, and applicants 1, 2, and 4 are qualified to be Biomedical Engineers.

You are driving on a dry road, and it begins to rain. You should

Answers

Answer:

During the time of rain or heavy rainfall, a person driving a car must reduce his speed and should drive at a speed in which he could control the car in the slippery road.

He/she should also switch on the wiper, which helps in cleaning the front glass of the car. This continuous motion of the wiper on the glass helps the driver to observe the road while driving.

One must also be aware of the pits that are present on the road in order to avoid inconveniency during driving.

not the best pic but anyone know?

Answers

The answer is A
Hope this helped saw that no one answered this.

Which of the following best describes the development of social thought during the period?

Question options:

Rise in Enlightenment philosophies led to liberalism among the masses, while those in power clung to traditional conservative beliefs

Rise in Enlightenment philosophies led to conservatism among the masses, while many clung to socialist beliefs

European monarchs began to practice liberalism, while their subjects embraced socialism

European monarchs outlawed conservatism, while themselves practicing socialism

Answers

Assuming this is referring to the era of enlightenment I would choose the first option. The American and French revolutions really displayed the mood of the era as the masses began to believe they had inalienable human rights. John Locke describes these as life, liberty, and property. Rulers were happy with the status quo however as they wanted to maintain autocratic power over the masses.

Why is entering the correct codes important for patient billing? Give an example of when the incorrect code might be entered and the consequences.

Answers

A rejected claim has been disallowed for the reason that of errors. An insurance company might disregard a claim for the reason that a medical billing specialist erroneously input patient or cover information. Once a medical billing professional amends the mistakes on a disallowed claim they can pass it again for dispensation with an insurance company.

can someone solve this puzzle for me

Answers

its 70 and 7/8 because 56×81÷64=70.875= 70 7/8

The measure of the way in which quantity supplied responds to a change in price is?

Answers

The answer is elasticity of supply

The graph shows the population of the United States in 2011.
Population of the United State (2011)

What percentage of the population are eligible voters and over the age of 24?

one-fourth
one-third
one-half
two-thirds

Answers

The awnser is : 2/3 ( two thirds )
Hope it helps

the answer is two-thirds

There are a total of 64 students in a drama club and a yearbook club. The drama club has 10 more students than the yearbook club.
a. Write a system of linear equations that represents this situation. Let xx represent the number of students in the drama club and yy represent the number of students in the yearbook club.System of equations: x=x= x+x+ y=64

Answers

Given:64 total studentsx = drama club studentsy = yearbook club students
x = y + 10y = 64 - x
y = 64 - xy = 64 - (y + 10)y = 64 - y - 10y + y = 64 - 102y = 542y/2 = 54/2y = 27
x = y + 10x = 27 + 10x = 37
To check:
x + y = 6437 + 27 = 6464 = 64

37 people in yearbook club
27 in drama

37 peaple in the year book and 27 in drama book club

How do scientists know that dark matter exists? A. Clusters that cannibalize each other B. Nuclear Bulges C. Redshifts D. Gravitational lensing.

Answers

Not 100% sure but I'm pretty sure the answer is D.

D. Gravitational lensing.

This means that the light is bending as the light travels from the source to the observer, and if there are any 'holes' in between the beam, that is where 'dark matter' exists

hope this helps

True or False
All tectonic plates are the same.

Answers

i think this is false, if this is wong take emh pts away. but this is becasue they move diff

false, tectonic plates come in all sizes

The blue lobster is a rare form that results from the overproduction of a certain protein, resulting in genetic variations in lobster coloring. What is the best explanation for how this rare variety arose?

Answers

Answer: Genetic mutation

Explanation:

Identify one difference in the way elites used art or architecture in europe and in asia during the period 1450-1750

Answers

Art and architecture we used as a symbol of wealth, the invention of a ‘renaissance man’ (someone who was good at many things) encouraged the wealthy and elite to look toward decorative arts and literature. You can even look further to the aquaducts that the romans built to show their dominance and wealth to the outside world

I am not 100% sure about the answer, but art and architecture patronage in Renaissance Europe targeted both newly emerged merchants, bourgeois, as well as wealth middle class and royals. Art patronage in Asia more focused on absolute monarchy and displayed their authority and might

__________ psychologists study how evolution may influence animal and human behavior.

Answers

Answer:

EVOLUTIONARY

this is the only thing that I know

Psychodynamic psychologists study human behavior by exploring the unconscious mind and the impact of past experiences on current behavior.

Who is a psychodynamic psychologist?

Psychodynamic psychology is a theoretical approach to understanding human behavior and personality that is based on the idea that behavior is shaped by unconscious mental processes and childhood experiences.

They may use various techniques to gain insight into a person's thoughts, feelings, and behaviors, such as free association, dream analysis, and transference. Some psychologist are primarily interested in animal behavior; others want to better understand the physiological and psychological shared by humans and other species.

Learn more about psychodynamic psychologist:

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Anybody have the answer

Answers

350/x = sin(28°)
x = 350/sin(28°) ≈ 745.5 . . . ft

The student choir is having a concert this Saturday. Tickets are $7 each, and the concert hall has 648 seats. How much money will the choir collect if they sell tickets for all the seats?
$4,286
$4,436
$4,536
$4,646

Answers

They will earn $4,536

They will receive a total of $4,536

Anybody have the answer to this?

Answers

x +112° = 2*93°
x = 186° -112°
x = 74°

The _______ papillae people have, the _______ sensitive they are to bitter tastes.

A more; more
B fewer; more
C more; less

Answers

A. it isn't commonly known but the more papillae you have the more sensitive you are too sour and bitter foods such as grapefruit.

A because the ore you have the more sensitive

discuss how gender inequality in relationships could contribute to teenage pregnancy

Answers

Gender inequality in a relationship means one person in the relationship is either dominant and the other one is inferior especially in decision making. It could contribute to teenage pregnancy because the one who is dominant or superior in the relationship could take advantage on the other person and could forced the other one to do things even though it is against his/her will.

During the follow-up period, young women's opinions regarding the nature of relationships enhanced the risk of an incident pregnancy.

Gender inequality:

In a relationship, gender inequality indicates that one partner is dominating and the other is subordinate, especially when it comes to decision-making.

It may lead to wrong decision because the dominating or superior person in the relationship may take advantage of the other person and push the other person to do things against his or her will.

Find our more information about 'Gender inequality':

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In the early 1970s _____ first used the term "information skills"

Answers

The United States National Forum on Information Literacy defines information literacy as "... the ability to know when there is a need for information, to be able to identify, locate, evaluate, and effectively use that information for the issue or problem at hand."[1][2] The American Library Association defines "information literacy" as a set of abilities requiring individuals to "recognize when information is needed and have the ability to locate, evaluate, and use effectively the needed information.[3] Other definitions incorporate aspects of "skepticism, judgement, free thinking, questioning, and understanding..."[4] or incorporate competencies that an informed citizen of an information society ought to possess to participate intelligently and actively in that society.[5]

Answer:

Paul Zurkowski

Explanation:

Paul Zurkowski was the person that created the term information skills in 1974. He used the term for the first time in a document presented to the US National Commission on Libraries and Information Science to refer to techniques that are learned by information literates when they find information solutions to problems by using information resources. According to this, the answer is that in the early 1970s, Paul Zurkowski first used the term "information skills".

find the derivative
[tex]y = ln \sqrt{3x} [/tex]

Answers

y = ln(√(3x)) = (1/2)ln(3x) = (1/2)(ln(3) +ln(x))

dy/dx = (1/2)(0 +1/x) = 1/(2x)

who is a good person to ask for advice to keep you motivated to do your homework?
a)guidance counselor
b)church pastor
c)social worker
d)volunteer coordinator

Answers

Guidance Counselor. Why? They're at the facility for the majority of the time. They support and advise students on a daily basis from a variety of different problems, angles, and perspectives. They're better equipped to handle student problems. Also, if you manage to look throughout your school (or any) the guidance counselor is mostly promoted as the individual to go to with academic learning issues, personal problems, and to conjure methods that help students succeed. You can make the same assumption for church pastors, social workers, and volunteer coordinators. However the key factor here is the environment, audience, and problems encountered. The other three choices have a bigger audience from different background with different problems and different scenarios.

A good person to ask for advice to keep you motivated to do your homework is a guidance counsellor. Thus, the correct answer is option A.

Who is a guidance counselor?

A guidance counsellor is a professional who works in schools or other educational settings to advise students on academics, relationships, and careers. They assist their students in assessing their potential skills in order to help them develop their self-esteem and succeed in their future activities.

Guidance counsellors focused on career counselling. School counsellors place a premium on students' academic, professional, social, and emotional development. Guidance counsellors worked independently within schools. School counsellors work with teachers, parents, administrators, outside counselling organisations, and other stakeholders. They can help students recognise and develop certain abilities and interests.

Therefore, guidance counselor is a good person to ask for advice to keep you motivated to do your homework.

To learn more about Guidance counselors, click here:

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Why did Germany and Japan criticize Coca-Cola during WWII?

Answers

I don't know about Japan, but Germany had a real love hate relationship with Coca Cola. There was a great deal of maneuvering to satisfy both parties. There is an interesting footnote. Germany thought Coca Cola was "too American" for it to be exposed to the German people. (That is likely the answer you are looking for). So Coke changed the product's name to Fanta. I don't think the Fanta we drink today is related.

The logo that Coke developed in Germany was a swastika with coke or coca cola plastered all over it.

OSHA requires that _____.

Answers

OSHA requires that businesses follow safety measures to protect workers, and to display summaries of work-related injuries to the ODHA every year, as well as look after workers to help them recieve compensation if injured during work

hope this helps

AP American government and politics

Answers

AP American Government and Politics

This course introduces students to key political ideas, institutions, policies, interactions, roles, and behaviors that characterize the political culture of the United States. The course examines politically significant concepts and themes, through which students learn to apply disciplinary reasoning, assess causes and consequences of political events, and interpret data to develop evidence-based arguments. (https://apcentral.collegeboard.org/courses/ap-united-states-government-and-politics/course)

It's not an easy course for everyone but it can be manageable if you try your best and always force on getting better even if you think you are already good because you can always get better. It's helpful to be aware of a current event for government class so you wouldn't struggle with the FRQ's.

If a hexagon has a side length of 10 what is the area of the hexagon?

Answers

The answer to your question is area = 259.81

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