If cells are placed side by side. Then, how are the terminals of the cells connected?

Why do we cover plug pinholes which are within the reach of children with cellotape or a plastic cover when not in use?

An electrician is carrying out some repairs in your house. He wants to replace a fuse by a piece of wire. Would you agree? Give reasons for your response.

Figure shows four cells fixed on a board. Draw lines to indicate how will you connect their terminals with wires to make a battery of four cells.

Electric fuse is based on the magnetic effect of electric current.

The element of an electric iron is made of tungsten.

MCB works on the magnetic effect of current.

A car battery is just one big cell.

To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of the other cell.

Draw in your notebook the symbols to represent the following components of electrical circuits : connecting wires, switch in the 'OFF' position, bulb, cell, switch in the 'ON' position and battery.

We should not touch the lighted bulb. Explain, why.

If the current through the coil stops flowing. Will the coil remain an electromagnet?

Name some electric appliances where the heating effect of the electric current is used.

Last Sunday, Pulpit was playing videotape in his room. While playing, the electricity of his house went off due to which he could not able to see anything around him. Then anyhow, he managed to get his mobile in his hand and with the help of its light, he went outside of his room to check if there was any problem in the electric circuit board of his house.
At the same time, his father suggested him to maintain the distance from the circuit board and decided to call some electrician to check the problem.
(a) Explain, what happens when live wire and neutral wire touches each other directly?
(b) State the values here showed by Pulkit's father.

One day, Pinki was ironing the clothes in her room. After half an iron of ironing, the light went off and Pinki went outside to the lobby of her house to check it there was any problem in the household circuit. At the same time, she listened the voice of her 4 years old daughter from the same room where she was ironing the clothes. Her daughter was about to touch the hot electric iron but at the same moment, Pinki entered in the room and pushed her daughter back from that place.
(a) On which effect of electric current, does the electric iron works?
(b) Mention the values showed by Pinki here.

The coil of wire contained in heater is known as

A battery is a combination of

Which of the following precautions need not be taken while using electric gadgets/ appliances/circuit?

If the number of turns in the coil of an electromagnet is more, the strength of the electromagnet will be

Choose the statement which is not correct in the case of an electric fuse.

The core of an electromagnet is made from____________.

A combination of two or more cells is called a_____________.

In an electric circuit, a fuse is a___________to prevent possible fire.

An electric cell produces electricity from the____________in it.

Our body is a_____________of electricity.

A material used for making electromagnet

A material which does not allow the electric current to pass

A material used for making filament of a bulb

An alloy used as a material of fuse wire

A magnetic device used for finding geographic directions