Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Alternating Current

Question:

A metal plate is getting heated. It can be because of-

A. An alternating current is passing through the plate.
B. It is placed in a time varying magnetic field.
C. A direct current is passing through the plate.
D. It is placed in a space varying magnetic field, but does not vary with time.
E. It is placed in a time constant magnetic filed.

Choose the correct answer from the options given below:

Options:

A, B, C Only

C, D, E Only

A, D, E Only

B, C, D Only

Correct Answer:

A, B, C Only

Explanation:

When a metal plate is getting heated, it may be due to the passage of direct current, alternating current, or even an induced current passing through the plate.

Induced current can be produced due to variation in magnetic flux with time i.e in a time varying magnetic field.