English
Maharashtra State BoardSSC (English Medium) 10th Standard

In which electric motor appliances do we use it? - Science and Technology 1

Advertisements
Advertisements

Question

In which electric motor appliances do we use it?

One Line Answer
Advertisements

Solution

Appliances that uses electric motor are Dryers, vacuum cleaners, fans, air conditioners, refrigerators, freezers, etc.

shaalaa.com
  Is there an error in this question or solution?
Chapter 4: Effects of electric current - Solve the following Questions

APPEARS IN

SCERT Maharashtra Science and Technology 1 [English] 10 Standard SSC
Chapter 4 Effects of electric current
Solve the following Questions | Q 4.2

RELATED QUESTIONS

Draw figure ‘Electric motor’ and working 


State whether the following statement is true or false.

An electric motor converts mechanical energy into electrical energy.


Name some devices in which electric motors are used


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.


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?


What is the function of a commutator in an electric motor made ? 


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 


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


Fill in the following blank with suitable words: 

 A motor contains a kind of switch called a .......... which reverses the current every half .......... .


What is the principle of an electric motor?


 State what would happen to the direction of rotation of a motor if: 

 In what ways can a motor be made more powerful? 


What are the special features of commercial electric motors? 


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


Tell the odd one out. Give proper explanation.

Loud speaker, Microphone, Electric motor, Magnet.


Which device is used to produce electricity? Describe with a neat diagram.


Name some of the devices in which electric motor are used.


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


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 ____________.


How can the speed of rotation of a coil be increased? Write at least three methods.


The most suitable material for making permanent magnets is ______.


The moving part of an electric motor is called ______.


Observe the following diagram and answer the questions.

  1. Construction of which equipment does the above diagram show?
  2. On which principle does this equipment work?
  3. According to which law the coil ABCD rotates?
  4. Write the law in your own words.
  5. Where is this equipment used?

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×