Advertisements
Advertisements
प्रश्न
What is the Principle of an Electric motor?
Write the' principle of working of an electric motor.
Advertisements
उत्तर १
Principle of Electric Motor:
An electric motor works on the principle that a current-carrying conductor placed in a magnetic field experiences a force.
उत्तर २
The working principle of an electric motor is based on the magnetic effect of current. A current-carrying loop experiences a force and rotates when placed in a magnetic field. The direction of rotation of the loop is given by Fleming’s left-hand rule.
APPEARS IN
संबंधित प्रश्न
Draw figure ‘Electric motor’ and working
Name any four appliances where electric motor is used.
What is the role of the split ring in an electric motor?
Name some devices in which electric motors are used
Explain the construction and working of an electric motor.
Explain the function of the following parts of an electric motor.
Brushes
Label the four parts of an electric motor
Electric motor works on the magnetic effect of electric current.
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.
State what would happen to the direction of rotation of a motor if:
the current were reversed
What is an electric motor? With the help of a labelled diagram, describe the working of a simple electric motor
What are the special features of commercial electric motors?
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
Which device is used to produce electricity? Describe with a neat diagram.
Name some of the devices in which electric motor are used.
Right or wrong sentence.
Electro chemicals are devices that convert electrical energy into mechanical energy.
What is an electric motor?
State whether true or false. If false, correct the statement.
A generator converts mechanical energy into electrical energy.
List the main parts of an electric motor.
An electric motor is a device which transforms ____________.
Direction of rotation of a coil in electric motor is determined by ____________.
Commercial electric motors do not use ____________.
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?
The most suitable material for making permanent magnets is ______.
The moving part of an electric motor is called ______.
Define electric motor.
