Physics Exam > Physics Questions > Square root of side a is pullout of constant ...
Start Learning for Free
Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not?
Most Upvoted Answer
Square root of side a is pullout of constant perpendicular magnetic fi...
Understanding the Scenario
In this scenario, a square loop with side length \( a \) is being pulled out of a constant perpendicular magnetic field \( B \) at a constant velocity \( v \). The motion of the loop generates an electromotive force (EMF) due to electromagnetic induction, which according to Faraday's law, is given by the rate of change of magnetic flux through the loop.
Key Concepts
- Electromagnetic Induction
- As the loop is pulled out, the magnetic flux \( \Phi \) through the loop decreases.
- The induced EMF \( \varepsilon \) in the loop can be expressed as:
\[
\varepsilon = -\frac{d\Phi}{dt}
\]
- Resistance and Work Done
- The loop has a resistance \( R \), leading to a current \( I \) flowing through it, given by Ohm's law:
\[
I = \frac{\varepsilon}{R}
\]
- Work Done Against Induced EMF
- The work \( W \) done in pulling the loop out is calculated as:
\[
W = \varepsilon \cdot I \cdot t
\]
- Since the induced EMF is present, the work done is not zero.
Conclusion
In conclusion, the work done in pulling the loop out of the magnetic field is **not zero**. The induced EMF generates a current that opposes the motion (according to Lenz's Law), leading to a resistive force, which means work must be done against this force to maintain the constant velocity \( v \). Therefore, energy is expended in the process, confirming that work done is indeed non-zero.
In this scenario, a square loop with side length \( a \) is being pulled out of a constant perpendicular magnetic field \( B \) at a constant velocity \( v \). The motion of the loop generates an electromotive force (EMF) due to electromagnetic induction, which according to Faraday's law, is given by the rate of change of magnetic flux through the loop.
Key Concepts
- Electromagnetic Induction
- As the loop is pulled out, the magnetic flux \( \Phi \) through the loop decreases.
- The induced EMF \( \varepsilon \) in the loop can be expressed as:
\[
\varepsilon = -\frac{d\Phi}{dt}
\]
- Resistance and Work Done
- The loop has a resistance \( R \), leading to a current \( I \) flowing through it, given by Ohm's law:
\[
I = \frac{\varepsilon}{R}
\]
- Work Done Against Induced EMF
- The work \( W \) done in pulling the loop out is calculated as:
\[
W = \varepsilon \cdot I \cdot t
\]
- Since the induced EMF is present, the work done is not zero.
Conclusion
In conclusion, the work done in pulling the loop out of the magnetic field is **not zero**. The induced EMF generates a current that opposes the motion (according to Lenz's Law), leading to a resistive force, which means work must be done against this force to maintain the constant velocity \( v \). Therefore, energy is expended in the process, confirming that work done is indeed non-zero.
|
Explore Courses for Physics exam
|
|
Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not?
Question Description
Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not?.
Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not?.
Solutions for Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? 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 Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? defined & explained in the simplest way possible. Besides giving the explanation of
Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not?, a detailed solution for Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? has been provided alongside types of Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? theory, EduRev gives you an
ample number of questions to practice Square root of side a is pullout of constant perpendicular magnetic field b with a constant velocity v if direction of velocity is parallel to one of its sides and resistance of loop is are work done in the process is zero or not? 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
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup