Which of the following is the unit of electric current ?
1). Kelvin
2). Mole
3). Candela
4). Erg
2. Conversion of sound energy into electrical energy is done by
3. UK It is difficult to cook rice
5. While ascending a hill, the driver of the vehicle keeps the gear ratio
6. The best material for the core of a transformer is
7. Which of the following refers to too much electricity and may cause a voltage surge?
8. Slip rings are usually made of