Electricity and circuits 6th standard additional answers and questions

Additional questions and answers from electricity and circuits 6th std from science .

1. What is dry cell ?

ans - It is a device which converts chemical energy into electrical energy.

2. What is solar cell ?

ans - A device which converts solar energy into electrical energy.

3. What is inside the glass case of a bulb?

ans - Filament

4. Give one difference between a cell and a battery.

ans - A cell produces electricity by chemical reactions taking place in it whereas battery is made up of two or more cells joined together.

5. What are the essential components of an electric circuit?

ans - Connecting wires, bulb, switch and cell are the essential components of an electric circuit

6. what is difference between.Open circuit and Closed circuit.

ans - Open circuit : - Circuit having a gap in its path.The bulb does not light up in this circuit. 

Close circuit:- Circuit which forms a complete path.The bulb lights up in this circuit.

7. Write one use of insulators.

ans - Insulators are used to prevent the flow of electricity and to protect against electric shocks.

8. What is the name of thin wire in the electric bulb?

ans - the thin wire in an electric bulb is called the filament.

9. What is inside the glass case of a bulb?

ans - Inside the glass case of a bulb, there is a vacuum or an inert gas to prevent the filament from burning.

10.Why does an electric bulb not glow when both the wires are connected to the same terminal of a cell.

ans - When both wires are connected to the same terminal, there is no potential difference to create a flow of electricity through the bulb, so it does not glow.

11. Why does a cell stop producing electricity after sometime?

Answer: A cell stops producing electricity after some time because the chemicals inside it are used up in the electrochemical reaction that generates electricity.