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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Electric motors are devices that convert electrical energy into mechanical energy. - Science and Technology 1

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प्रश्न

Electric motors are devices that convert electrical energy into mechanical energy.

पर्याय

  • Right

  • Wrong

MCQ
चूक किंवा बरोबर
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उत्तर

Electric motors are devices that convert electrical energy into mechanical energy- Right

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 4: Effects of electric current - Right or Wrong sentence

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संबंधित प्रश्‍न

What is the Principle of an Electric motor?


What is the role of the split ring in an electric motor?


State whether the following statement is true or false.

An electric motor converts mechanical energy into electrical energy.


Explain the construction and working of 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


A motor converts one form of energy into another. Name the two forms.


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?


In an electric motor, which of the following remains fixed and which rotates with the coil?
Commutator ; Brush 


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.


 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.


Draw a labelled diagram of an electric motor.


Electric motor : converts electrical energy into mechanical energy : : Electric generator : _______


An electric motor converts ______.


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.


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 ____________.


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.


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