electricity and circuits

1. A Cell is a device which

• A) Electrical energy into magnetic energy

• b) converts chemical energy into electrical energy

• C) electrical energy into light energy

• d) None of these

'X' is a safety device used in electrical circuits which prevent damage to electrical equipments

Identify 'X':

• Electromagnet

• Fuse

• Electric cell

• Tubelight

A thin wire that emits light in a bulb is known as________.

• Insulator

• Filament

• Reflector

• Refractor

The metal disc of an electric cell is:

• Positive terminal

• Negative terminal

• Both positive and negative terminal

• Neutral terminal

A device that can make or break a circuit is called as____________.

• Fuse

• Switch

• Reflector

• Cell

Wirs used in a circuit should always be conductors.

• True

• False

A battery make up of two cells has____________ terminals.

• One

• Two

• Three

• Four

Metal cap of an electric cell is the ___________terminal of the cell.

• random

• negative

• neutral

• positive

Henry is running short of connecting wires, in order to complete the circuits he may use:

• Glass rod

• Plastic wire

• Rubber pipe

• Iron wire

An electric bulb in a closed circuit is not glowing. Which of the following can be a reason?

• Bulb's filament is broken

• Filament of the bulb is made of Tungsten

• Switch in the circuit is on

• Wires are made of copper