Electrical wires at homes are covered with plastic while the wires connected to electric poles are bare, though they carry a much larger amount of current. Why is it so?
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Explanation:
When it comes to electricity, there are two types of materials: conductors and insulators. Conductors are materials that are known for their low opposition to electrical flow. Insulators are known for their great capability to stop the flow of current. For successful wiring and usage of electricity, both materials have to work together to get clean and safe energy where it is needed.
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Answer:
We get a shock when current flows through our body as the current passes through our body from the naked wire to the ground as the circuit is completed. This gives us a shock. But when we wear rubber slippers or are standing on wood while using electrical appliances, it insulates us from the ground and we don't get a shock.
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