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Question

Why are the electric wires used in homes usually covered with materials like plastic or rubber?


  1. To prevent rusting.

  2. To make handling easier.

  3. To prevent shock.

  4. To make them look beautiful.


Solution

The correct option is C

To prevent shock.


Electric wires used in homes generally have a plastic or rubber covering so as to prevent shocks when we touch them. Our body can conduct electricity, so when we hold the current-carrying wire without any covering, the current flows through our body which gives us a shock. Without the covering, the wires may come in contact with each other and cause short-circuit as well.

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