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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