NCERT 6th Class (CBSE) Science: Electricity and Circuits

Question: What is the direction of flow of current in a dry cell?

Answer: The current flows in closed circuit from +ve to -ve terminal of cell.

Question: Name the +ve terminal of dry cell.

Answer: Carbon rod with a metal cap on it.

Question: Name the -ve terminal of a dry cell.

Answer: Zinc metal plate.

Question: What is dry cell?

Answer: It is a device which converts chemical energy into electrical energy.

Question: What is solar cell?

Answer: A device which converts solar energy into electrical energy.

Question: What is open circuit?

Answer: An electric circuit in which electrical contact at any point is broken is called open circuit.

Question: Write one use of insulators.

Answer: Insulators are used in making switchboard, handles of testers, screw drivers.

Question: What is the name of thin wire in the electric bulb?

Answer: Filament.

Question: Mention two advantages of a dry cell.

Answer:

1. It converts chemical energy into electrical energy.
2. It is light and small in size.

Question: Define conductors and insulators. Give one example of each.

Answer:

1. A conductor is that which easily allows the passage of current through it. Example: Aluminium or any metal.
2. An insulator is that which does not allow the passage of current through it. Example: Rubber.