engineering recuitment JVVNL Technical Helper 2022 Mock Test Physics Electromagnetic Induction and Inductance Faraday’s Law of Induction
The electric current of an electromagnet is switched off then the magnetic property of the electromagnet will-
1
Remain for few moment
2
Vanish instantly
3
Will decrease with time for long
4
Will increase with time for long
5
None of the above