Science [1 Marks Each] QUE - ANS

Filament.

A fused bulb means a break in its filament which results in a break in the path of the current between the terminals of the electric cell. Thus a fused bulb does not light up as no current passes through its filament.

A conductor is a material that allows an electric current to pass through it. For example, copper, aluminium, zinc, iron, etc.

Because they are insulators and avoid direct contact with electric current while touching electric wires.

Yes, bulb will glow because current will flow from two terminals of the bulb.

This may happen if the bulb has fused.

An electric cell produces electricity from chemicals stored inside it. When the chemicals inside the cell are used up, the cell stops producing electricity.

False.
Explanation:
Thermocol is a bad conductor of electricity. Hence, electric current cannot pass through it.

Negative terminal and positive terminal.

A layer of bad conductor polish is coated on the wire. The current will flow properly after removing this coat. Therefore, we have to remove the coating with sand paper.

Air is insulator.

Torch and oven.

Because distilled water acts as an insulator as it is purest water. Whereas tap water has salts and impurities and acts as a conductor.