Asked/Added Questions From NCERT:

Question 1. Asked on :09 July 2019:12:32:25 AM

What is commutator? 

-Added by ATP Admin Science » Electric Motor


ATP Admin

Commutator is a device which is used to reverse the direction of the flowing of the electric current. split ring is a such device which works as commutator in a electrical motor.  

-Answered by ATP Admin On 09 July 2019:12:35:25 AM

Question 2. Asked on :08 July 2019:11:36:06 PM

Write the principle of electric motor. Explain it with the help of diagram. 

-Added by ATP Admin Science » Electric Motor


ATP Admin

Principle of electric motor: 

An electric motor works on the principle that a current carrying conductor experiences a force when placed in a magnetic field. If the direction of the magnetic field and that of the direction of a current which pass through the magnetic field are mutually perpendicular then the direction of the force is given by Fleming's left-hand rule. Electric motor convert the electrical energy to mechanical energy. 

-Answered by ATP Admin On 08 July 2019:11:39:15 PM

Question 3. Asked on :08 July 2019:11:23:45 PM

Draw a labeled diagram of electric motor. 

-Added by ATP Admin Science » Electric Motor


ATP Admin



-Answered by ATP Admin On 08 July 2019:11:30:49 PM


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