Cell and Battery

The two cells in the torch are connected such that the positive terminal of the first cell is connected to one of the terminal of the bulb.

Why are the cells connected in series in a torch?

The cells are connected series in a torch.

The cells are connected parallel in a torch.

How are cells connected in a torch?

A secondary cell can be recharged only once.

Which of the following devices use the electric cell for their functioning?

Name the metal that acts as a negative terminal in a dry cell. 
(Choose one of the following: Zinc/ Carbon).

The number of terminal (s) in an electric cell are
 

Dry cell is a source of which type of energy?

Name the scientist who discovered cell.
(Andre-Marie Ampere/Alessandro Volta)

What is common to the household things shown in the following pictures?

The device that produces a small amount of electric current:

What happens when the chemicals inside a dry cell run out?

A torch cell has two terminals.

A cell has two terminals.

What is an electric cell? Name the two terminals of an electric cell.

Secondary cells are used in.

Think for a moment, the world without electricity. There will be no bulb, tube, computer, TV, AC, Refrigerator, fan, cooler, heater, mobile and many more. The list is endless. It is difficult even to imagine modern life without electricity. Electricity has become an integral part of our life. The electricity for homes, offices, factories, industries, etc. is generated at electric power plants. Besides a boon, electricity can be dangerous if handled carelessly. Accidents, fires and injuries can occur unalarmingly. Therefore, extreme caution is required to avoid any mis-happening. We should use all the safety precautions recommended for electric connections and devices.

Name some electrical devices? 

List three things that get their energy from electricity.