Question

Give reasons for the following statements.

1.If a bulb is fused, it does not glow.

2. Rubber, plastics and ceramics can protect us from the dangers of electricity.

3. A person can get a fatal electric shock on touching an uncovered electric wire.
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Answer 1

Answer:

1: because if it is fused circute opens and current don't flow through it

2:because Rubber, plastics and ceramics insulate current

3:because current flows through his body and damages his nerve system if it is low frequency current if it is high frequency current it burns his skin

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Answer 2

Question= If a bulb is fused, it does not glow.

Answer:

If a bulb does not glow even when a cell is connected and the circuit is complete, then it means the filament is broken and the bulb is fused.

Question: Rubber plastics and gramics can protect us from the dangers of electricity.

Answer:

Rubber, Plastics and gramics can protect us from the dangers of electricity as they are insulator.

Question: A person can get a fatal electric shock on touching an uncouered electric wire.

Answer:

A person can get fatal electric shock on touching an unconvered electric wireas wire is good conducter of electricity.