English
Maharashtra State BoardSSC (English Medium) 10th Standard

Name Any Four Appliances Where Electric Motor is Used. - Science and Technology 1

Advertisements
Advertisements

Question

Name any four appliances where electric motor is used.

Advertisements

Solution

Electric motors are used in domestic appliances such a mixer, blender and washing machine. DC motor is used in an electric fan, hair dryer, record player, tape recorder and blower.

shaalaa.com
  Is there an error in this question or solution?
2015-2016 (March)

APPEARS IN

RELATED QUESTIONS

Draw figure ‘Electric motor’ and working 


Explain the function of the following parts of an electric motor.

Armature 


Explain the function of the following parts of an electric motor.

Split ring


Label the four parts of an electric motor


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?


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.


What is the principle of an electric motor?


 In a d.c. motor, why must the current to the coil be reversed twice during each rotation? 


 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? 


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.


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.


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


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


What is an electric motor?


Observe the figure and write the answers to the questions asked.

  1. The construction shown in the figure is of which device?
  2. Explain the principle on which this device works.
  3. Write any three uses of this device.

List the main parts of an electric motor.


Direction of rotation of a coil in electric motor is determined by ____________.


Commercial electric motors do not use ____________.


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×