railway RRB JE (CBT I + CBT II) Mock Test 2024 Electrician and Wireman Electrical Wiring Domestic and Industrial Wiring
What principle does the Miniature circuit breaker(MCB) work?
1
Solenoid and hydraulical damped plunger
2
Lenz's law
3
Electro-Magnetic Induction
4
Mutual Induction