Shaalaa.com | Magnetic Effects of Current part 10 (Electric motors)
State what would happen to the direction of rotation of a motor if:
In what ways can a motor be made more powerful?
An electric motor is a device which transforms:
mechanical energy to electrical
heat energy to electrical energy
electrical energy to heat energy only
electrical energy to mechanical energy
Fill in the following blank with suitable words:
A motor contains a kind of switch called a .......... which reverses the current every half .......... .
In an electric motor, the direction of current in the coil changes once in each: