An induction coil is generally used to?
An electrical device has 50 turns in its primary coil and 20 turns in the secondary coil. The device can be a\an?
A freely suspended compass needle on the earth's surface settles in a plane called----------
The reason for having a large number of turns in the coil of a moving coil galvanometer is to--------
Current is passed through two parallel conductors in the same direction. If the conductors are placed near each other, they will------------------
