Give reasons for the follow statements. 1) If a bulb is fused, it does not glow. 2) Rubber plastics and gramics can protect us from the dangers of electricity. 3) A person can get a fatal electric shock on touching an uncouered electric wire.
Answers
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.
Electricity does not travel easily through certain materials like special rubber, plastic, and glass. These materials are known as insulators and are used to keep electricity from leaving the wires it travels on. Insulators keep electricity from leaving power lines.
The human body is a good conductor of electricity. If you touch an uncovered electric wire, the electricity will flow through your body causing electrical shock. The shock can be fatal, it depends upon the current.