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Question

Power is transmitted across large distances through wires having ___ current and ___voltage.

A
low, low
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B
high, low
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C
low, high
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D
high, high
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Solution

The correct option is C low, high
Power is transmitted across large distances through wires carrying a low current and having a high potential difference across them. This is to prevent power loss by heating, as heat energy dissipated is directly proportional to the square of current flowing through it (HI2).

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