Advertisements
Advertisements
प्रश्न
State whether true or false. If false, correct the statement.
The speed of rotation of an electric motor can be increased by decreasing the area of the coil.
पर्याय
True
False
Advertisements
उत्तर
False
Correct Statement: The speed of rotation of coil can be increased by increasing the area of the coil.
APPEARS IN
संबंधित प्रश्न
Explain the function of the following parts of an electric motor.
Armature
State whether the following statement is true or false:
An electric motor converts mechanical energy into electrical energy.
Of what substance is the core of the coil of an electric motor made?
In a d.c. motor, why must the current to the coil be reversed twice during each rotation?
Tell the odd one out. Give proper explanation.
Loud speaker, Microphone, Electric motor, Magnet.
Draw a labelled diagram of an electric motor.
Direction of rotation of a coil in electric motor is determined by ____________.
Material of the core of a strong magnet is ____________.
Draw a labelled circuit diagram of a simple electric motor and explain its working. In what way these simple electric motors are different from commercial motors?
How can the speed of rotation of a coil be increased? Write at least three methods.
