Advertisements
Advertisements
Question
Label the four parts of an electric motor
Advertisements
Solution
APPEARS IN
RELATED QUESTIONS
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.
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 is the core of the coil of an electric motor made?
In an electric motor, which of the following remains fixed and which rotates with the coil?
Commutator ; Brush
Fill in the following blank with suitable words:
Fleming's Rule for the motor effect uses the .......... hand.
Fill in the following blank with suitable words:
A motor contains a kind of switch called a .......... which reverses the current every half .......... .
In a d.c. motor, why must the current to the coil be reversed twice during each rotation?
What is an electric motor? With the help of a labelled diagram, describe the working of a simple electric motor
Tell the odd one out. Give a proper explanation.
Which device is used to produce electricity? Describe with a neat diagram.
Study the following principle and answer the question.
A force is excreted on the current carrying conductor. The direction of this force depends on both the direction of the current and the direction of the magnetic field. This force is maximum when the direction of current is perpendicular to the direction of the magnetic field.
a) By which law we can determine the direction of force excreted on the current carrying conductor.
b) In which electrical equipment this principle is used.
c) Draw a diagram representing construction of this equipment.
d) Write the working of this equipment in brief.
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.
In which electric motor appliances do we use it?
Which of the following converts electrical energy into mechanical energy?
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 ____________.
In an electric motor, to make the coil rotating continuously in the same direction, the current is reversed in the coil after every half rotation by a device called ____________.
Commercial electric motors do not use ____________.
Material of the core of a strong magnet is ____________.
