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A cylindrical copper cable 1.50 km long is connected across
a 220.0 V potential difference. What should be its diameter so that
it produces heat at a rate of 90.0 W?

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A cylindrical copper cable 1.50 km long is connected acrossa 220.0 V potential difference. What should be its diameter so thatit produces heat at a rate of 90.0 W?