Question
Physics Question on Electromagnetic induction
Only a change in magnetic flux will maintain an induced current in the coil. 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
If A is true, but R is false
Explanation
Solution
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.