A transformer works on the principle of
1). Self induction
2). Mutual induction
3). Generator
4). Inverter
1. A deep sea driver may hurt his ear drum during diving because of
5. The resistance of an ideal ammeter is
6. When a body falls from an aeroplane, there is increase in its
7. The hair of shaving brush clings together when removed from water due to
8. According to special theory of relativity the mass of a particle