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प्रश्न
Electric motor : converts electrical energy into mechanical energy : : Electric generator : _______
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उत्तर
Electric motor : converts electrical energy into mechanical energy : : Electric generator : converts mechanical energy into electrical energy
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संबंधित प्रश्न
Draw figure ‘Electric motor’ and working
What is the role of the split ring in an electric motor?
Explain the function of the following parts of an electric motor.
Armature
Explain the function of the following parts of an electric motor.
Brushes
Explain the function of the following parts of an electric motor.
Split ring
Label the four parts of an electric motor
A motor converts one form of energy into another. Name the two forms.
State whether the following statement is true or false:
An electric motor converts mechanical energy into electrical energy.
Name the device which is used to reverse the direction of current in the coil of a motor?
What is the other name of the split ring used in an electric motor?
Of what substance are the brushes of an electric motor made?
Of what substance is the core of the coil of an electric motor made?
What is the role of the spilt ring in an electric motor?
Fill in the following blank with suitable words:
Fleming's Rule for the motor effect uses the .......... hand.
What is the principle of an electric motor?
State what would happen to the direction of rotation of a motor if:
the current were reversed
State what would happen to the direction of rotation of a motor if:
both current and magnetic field were reversed simultaneously.
State what would happen to the direction of rotation of a motor if:
In what ways can a motor be made more powerful?
In an electric motor, the direction of current in the coil changes once in each:
two rotations
one rotation
half rotation
one-four rotation
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
Name some of the devices in which electric motor are used.
Which of the following converts electrical energy into mechanical energy?
An electric motor converts ______.
Commercial electric motors do not use ____________.
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?
Draw an appropriate schematic diagram showing common domestic circuits and discuss the importance of fuse. Why is it that a burnt out fuse should be replaced by another fuse of identical rating?
How can the speed of rotation of a coil be increased? Write at least three methods.
The moving part of an electric motor is called ______.
Observe the following diagram and answer the questions.
- Construction of which equipment does the above diagram show?
- On which principle does this equipment work?
- According to which law the coil ABCD rotates?
- Write the law in your own words.
- Where is this equipment used?
