Advertisements
Advertisements
Question
State two ways by which the speed of rotation of an electric motor can be increased.
Solution
The speed of rotation of an electric motor can be increased by:
- Increasing the strength of current.
- Increasing the number of turns in the coil.
APPEARS IN
RELATED QUESTIONS
write two uses of DC motor
Draw a labelled diagram of a D.C. motor showing its main parts.
What energy conversion does take place during the working of a d.c. motor?
Name two appliances in which an electric motor is used.
In an electric motor the energy transformation is ______.
What is an electric motor?
Commercial electric motors do not use
Describe the working of an AC generator with the help of a labelled circuit diagram. What changes must be made in the arrangement to convert it to a DC generator?
State two factors affecting the coil's rotation speed in a D.C. motor.
State the principle of an electric motor.