Question

An induced emf is produced inA. a closed loop of wire when it remains at rest in a nonuniform static magnetic field.B. a closed loop of wire when it remains at rest in a uniform static magnetic field.C. a closed loop of wire moving at constant velocity in a nonuniform static magnetic field.D. only b and c above.E. all of the above.

Answer 1

C. a closed loop of wire moving at constant velocity in a nonuniform static magnetic field.

Step-by-step explanation:

As we know by Faraday's law that rate of change in magnetic flux will induce EMF

so mathematically we can say that

`EMF = (d\phi)/(dt)`

so we will have

`\phi = B.A`

so EMF will be induced if the flux linked with the closed loop will change with time.

So here correct answer will be

C. a closed loop of wire moving at constant velocity in a nonuniform static magnetic field.