Physics Exam > Physics Questions > . A rectangular loop of dimensions / and w mo...
Start Learning for Free
. A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop?
Most Upvoted Answer
. A rectangular loop of dimensions / and w moves with a constant speed...
Introduction:
A rectangular loop of dimensions l and w is moving with a constant speed v through a region containing a uniform magnetic field B directed into the paper. The magnetic field extends a distance of 4w. We need to determine the variation of the induced electromotive force (emf) with the position (x) of the front end of the loop.
Explanation:
1. Relationship between emf and magnetic field:
According to Faraday's law of electromagnetic induction, the emf induced in a loop is directly proportional to the rate of change of magnetic flux through the loop. The magnetic flux through a loop is given by the product of the magnetic field (B) and the area (A) of the loop.
2. Variation of magnetic flux with position:
As the loop moves through the magnetic field, the magnetic flux through the loop changes. The magnetic flux is maximum when the loop is completely inside the magnetic field and decreases as the loop moves out of the field.
3. Variation of emf with position:
Based on the above relationship, we can conclude the following:
- When the loop is completely inside the magnetic field (x = 0), the magnetic flux is maximum, and therefore the emf induced in the loop is also maximum.
- As the loop moves out of the magnetic field (x > 0), the magnetic flux decreases, resulting in a decrease in the induced emf.
- When the loop is completely outside the magnetic field (x = 4w), the magnetic flux is zero, and therefore the induced emf is also zero.
4. Correct representation of emf variation with position:
Based on the above analysis, we can conclude that the correct representation of the variation of emf (ɛ) with the position (x) of the front end of the loop is as follows:
- Initially, when the loop is inside the magnetic field (x = 0), the emf is maximum.
- As the loop moves out of the magnetic field, the emf decreases.
- When the loop is completely outside the magnetic field (x = 4w), the emf is zero.
Therefore, the correct figure representing the variation of emf (ɛ) with the position (x) of the front end of the loop would be a decreasing graph that starts at a maximum value and reaches zero at x = 4w.
A rectangular loop of dimensions l and w is moving with a constant speed v through a region containing a uniform magnetic field B directed into the paper. The magnetic field extends a distance of 4w. We need to determine the variation of the induced electromotive force (emf) with the position (x) of the front end of the loop.
Explanation:
1. Relationship between emf and magnetic field:
According to Faraday's law of electromagnetic induction, the emf induced in a loop is directly proportional to the rate of change of magnetic flux through the loop. The magnetic flux through a loop is given by the product of the magnetic field (B) and the area (A) of the loop.
2. Variation of magnetic flux with position:
As the loop moves through the magnetic field, the magnetic flux through the loop changes. The magnetic flux is maximum when the loop is completely inside the magnetic field and decreases as the loop moves out of the field.
3. Variation of emf with position:
Based on the above relationship, we can conclude the following:
- When the loop is completely inside the magnetic field (x = 0), the magnetic flux is maximum, and therefore the emf induced in the loop is also maximum.
- As the loop moves out of the magnetic field (x > 0), the magnetic flux decreases, resulting in a decrease in the induced emf.
- When the loop is completely outside the magnetic field (x = 4w), the magnetic flux is zero, and therefore the induced emf is also zero.
4. Correct representation of emf variation with position:
Based on the above analysis, we can conclude that the correct representation of the variation of emf (ɛ) with the position (x) of the front end of the loop is as follows:
- Initially, when the loop is inside the magnetic field (x = 0), the emf is maximum.
- As the loop moves out of the magnetic field, the emf decreases.
- When the loop is completely outside the magnetic field (x = 4w), the emf is zero.
Therefore, the correct figure representing the variation of emf (ɛ) with the position (x) of the front end of the loop would be a decreasing graph that starts at a maximum value and reaches zero at x = 4w.
|
Explore Courses for Physics exam
|
|
Similar Physics Doubts
. A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop?
Question Description
. A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop?.
. A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop?.
Solutions for . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? in English & in Hindi are available as part of our courses for Physics.
Download more important topics, notes, lectures and mock test series for Physics Exam by signing up for free.
Here you can find the meaning of . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? defined & explained in the simplest way possible. Besides giving the explanation of
. A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop?, a detailed solution for . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? has been provided alongside types of . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? theory, EduRev gives you an
ample number of questions to practice . A rectangular loop of dimensions / and w moves with a constant speed ofv through a region containing a uniform magnetic field B directed into the paper and extending a distance of 4w. Which of the following figures correctly represents the variation of emf(ɛ) with the position (x) of the front end of the loop? tests, examples and also practice Physics tests.
|
|
Explore Courses for Physics exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup