Power supply is transmitted at a very high voltage and low current in order to?

By: |Published on: Nov 9|Categories: Physics JAMB| 0 comments

A. make pass through the transformers
B. increase the power supply
C. make it travel fast
D. prevent overheating of the coil

Correct Answer:

Option D – prevent overheating of the coil

Explanation

Heat generated in a wire carrying current, H = 1²Rt. So, when the voltage is high and the current is low heat generated in the wire will be minimal.
Therefore, high voltage and low current prevent overheating of the coil.

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