Question

Fill in the blank.

Electromagnetic induction occurs in a wire when a change occurs in ______ in wire.

• A. current
• B. intensity of the electric field
• C. voltage applied
• D. magnetic field intensity applied
• E. resistance added to the wire

Answer 1

The correct option is A current

Electromagnetic induction occurs because of the change in the flux through the coil. Flux through the coil can be changed by changing the current or by magnetic field or by changing the area of the coil.