CBSE Class 12-science Answered
a square loop initially kept away from the region of magnetic field .then it is moved towards the right with a constant velocity and goes out of the field.plot the graph showing the variation of
1)magnetic flux through the loop with time
2)induced emf in the loop with time
Asked by modi72879 | 21 Nov, 2017, 04:51: PM
Expert Answer
When the loop is far away from magnetic field, flux is zero. when the loop entering the magnetic field region, flux increases from zero
to a constant value, then remains constant when it is moving in the field region. During exit time, the flux decreases from constant value to zero.
Induced emf is given by
, where ε is induced emf and φ is fluxWhen the loop is far away, the flux is zero and emf also zero. When the loop entering field region, the change in flux gives induced emf.
At the entrance change in flux is positive, hence induced emf is negative.
when the loop is well inside the field region, since flux remains constant, change in flux is zero, hence emf also zero.
when loop is exiting the field region again change in flux gives induced emf. Here change in flux is negative, hence induced emf is positive.
Answered by | 27 Nov, 2017, 03:42: PM
Concept Videos
-
Magnetic Flux - Part 1
This video deals with establishing a relation between electricity & magneti... -
Establish relation between electricity and magnetism ...
Establish relation between electricity & magnetism. Faraday's experiments &... -
Magnetic Flux - Exam Decoded
This video contains pratice questions on magnetic flux.
CBSE 12-science - Physics
Asked by basit06492 | 23 Jan, 2024, 03:37: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by vikrantdhurdev2020 | 31 Dec, 2022, 03:06: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by 0987gauranshi | 04 Jan, 2022, 02:33: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Hardikkr333 | 25 Nov, 2021, 10:46: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by kpbhake | 10 Jan, 2019, 06:52: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 06 Jul, 2015, 04:49: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 06 Jul, 2015, 04:51: PM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 07 Jul, 2015, 08:35: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 07 Jul, 2015, 08:38: AM
ANSWERED BY EXPERTCBSE 12-science - Physics
Asked by Topperlearning User | 07 Jul, 2015, 08:43: AM
ANSWERED BY EXPERT
