Question

Assertion : Only a change in magnetic flux will maintain an induced current in the coil.
Reason : The presence of large magnetic flux through a coil maintains a current in the coil if the circuit is continuous.

• A. If both A and R are true, and R is a correct explanation of the A
• B. If both A and R are true, but R is not a correct explanation of the A
• C. If A is true, but R is false
• D. If both A and R are false

Answer 1

Answer: (C)

Induced current (emf) in a coil is directly propertional to the rate of change of magnetic flux linked with the coil. If there is no change in the flux, there is no induced current also.