Asked/Added Questions From NCERT:

Electric motors are used in all devices where we want to convert electrical energy into Mechanical energy. In our houses, electric motors, coolres, mixers grinders, washing machine computers etc motors is used.

-Answered by Rahul Kumar On 10 October 2019:03:11:12 PM

If either the insulation of wires used in an electric circuit is damaged or there is a fault in the appliances, live wires and neutral wire may come in direct contact. As, a result the current in the circuit is abruptly rises and short circuiting occurs.

-Answered by Rahul Kumar On 10 October 2019:03:11:34 PM

 It is thicker so that it does not enter into the live or neutral sockets. It is made longer so that it gets connected to the earth terminal earlier  than the live and neutral pins. This ensures safety of the user.

-Answered by Rahul Kumar On 10 October 2019:03:12:38 PM

1) It is used in cranes for lifting heavy loads.

-Answered by Rahul Kumar On 10 October 2019:03:13:43 PM

  It mostly used in low voltage applications such as charging batteries, aircraft applications, etc. Alternating current is used to operate appliances for both household and industrial and commercial use. The electric current is measured in ampere.

-Answered by Rohit Rajput On 11 October 2019:08:19:31 PM

1) The strength of the current flowing through the solenoid.

-Answered by Akki chauhan On 11 October 2019:08:19:09 PM

Yes, a current is induced in the coil B. When the current in the coil A is changed, the magnetic field associated with it also changes. Due to change in magnetic field lines associated with coil B and induced current is also induced in it.

-Answered by Himanshi Verma On 06 October 2019:06:43:17 PM

-Answered by Nishant Verma On 06 October 2019:09:21:23 AM

-Answered by Nishant Verma On 02 September 2019:11:45:28 AM

Your search - A circular coil of cross section area 200 centimetre square and 20 turns is rotated about the ... - did not match any documents.

-Answered by priyanshu kumar On 06 October 2019:09:35:23 AM

-Answered by Nishant Verma On 29 August 2019:03:17:24 PM

1. Too many appliances should not be conducted to a single socket.

2. Too many appliances should not be  connected in the circuit.

3. Fuse should be connected in the circuit.

-Answered by Master Purushottam On 23 August 2019:08:36:44 PM

-Answered by priyanshu kumar On 13 November 2019:08:27:12 AM

 Magnetic field are a visual tool used to represent magnetic fields. They describe the direction of the magnetic force on a north monopole.

-Answered by Akki chauhan On 19 August 2019:09:11:28 AM

 An earth wire is literally wire that goes down into the earth.this is called earth wire.

It gives us safe route for the current if the life wire touch the outer casing. Live wire is wire that carry current. The metallic body is connected to the earth wire. which provides a low resistance conducting path of the current.

-Answered by Akki chauhan On 19 August 2019:10:28:59 AM

 Stretch the thumb, forefinger and middle finger of your left hand such that they are mutually perpendicular. If fore finger points in the direction of magnetic field, middle finger in the direction of current then thumb will point in the direction of motion or force.

-Answered by Himanshi Verma On 18 August 2019:07:08:32 PM

 A solenoid is a tightly is a tightly wound helical coil of wire whose diameter is small compared to its length.the magnetic field gencrated in the cuntre or core of a curret carrying solenoid is essentially uniform is directed along the axis of the solenoid.

-Answered by priyanshu kumar On 19 August 2019:09:58:38 AM

 1) Wind energy is an environment friendly and efficient source of renewable energy. 

2) It requires no recurring expanses for the production of electricity.

-Answered by Himanshi Verma On 02 August 2019:07:48:02 PM

 When we stretched the thumb, for finger and middle finger of your left hand such that they are mutually perpendicular. Then if the direction of magnetic field and middle finger in the direction of current then the thumb will point on the direction of motion or the force acting on the conductor.

-Answered by Himanshi Verma On 18 July 2019:09:13:53 PM

 Ans. If magnetic field lines intersect each other then the magnetic field (magnetic field lines) will have two different directions at that point. This is not possible. So they don't intersect.Feb 4, 2018

-Answered by Nishant Nishant On 12 July 2019:06:19:14 PM