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A heater is designed to operate with a power of 500 W in a 100 V line. It is connected in combination with resistance R, to a 100 V main as shown in the figure given below. What should be the value of R such that heater may operate with a power of 31.25 W |
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Answer» A heater is designed to operate with a power of 500 W in a 100 V line. It is connected in combination with resistance R, to a 100 V main as shown in the figure given below. What should be the value of R such that heater may operate with a power of 31.25 W |
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