Question

The electromagnet does not function when-
a. When switch is not attached to the circuit
b. When switch is on
c. When switch is off.
d. All of these are correct. The electromagnet does not function when-

Answer 1

Answer:

When switch is not attached to the circuit

Explanation:

If its a metal like soft iron, which magnetizes and demagnetizes almost immediately, a stop in current would immediately cause the electromagnet to stop working