It is compulsory to keep a fire extinguisher near the meter room of housing societies so that it can be used easily to douse electric fires caused by electric sparks.

Human body is a good conductor of electricity because if we stand barefoot on the ground and touch an electric wire, we will get an electric shock.

Some devices which make use of the electric cells are:
(i) Transistor radio, (ii) Camera, (iii) Wrist watch, (iv)Alarm clock.

Materials through which electric current cannot flow are called as insulators. For example: rubber.

Since, the bulb is connected with the cell directly at one terminal and other terminal is connected with the negative of the cell with a wire. So, bulb will glow.

The electric cell and the bulb both have two terminals so that there will be a path for the flow of electricity in a complete circuit.

When you switch on the torch, the filament part of the bulb glows

The gadgets which use electricity are fan, heater, television, air conditioner, etc.

To avoid electric shocks, we should use plastic gloves for operating electrical devices.

Positive terminal of dry cell consists of carbon

Torch is a portable electric lamp that works on cells.

There are two terminals of an electric cell, i.e. positive and negative terminals.

A fused bulb does not glow because in a fused bulb, the filament of bulb burns up and connection is broken or incomplete, so the current cannot flow.

Chemical reaction is a mean through which an electric cell can produce electricity.