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Question

According to Joule's law of heating, heat produced H=I2 Rt, where I is current, R is resistance and t is time. If the errors in the measurements of I, R and t are 3%, 4% and 6% respectively, then error in the measurement of H is

A
± 17%
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B
± 16%
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C
± 19%
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D
± 25%
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