A cylindrical wire with resistivity 2 x 10-82m is 1.8 km long and is connected across...
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A cylindrical wire with resistivity 2 x 10-82m is 1.8 km long and is connected across a 200 V potential difference. What should be its diameter in units of m so that it produces heat at a rate of 100 W? A cylindrical wire with resistivity 2 x 10-82m is 1.8 km long and is connected across a 200 V potential difference. What should be its diameter in units of m so that it produces heat at a rate of 100 W?
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