Q.

The heat generated in a circuit is given by Q = I2Rt, where I is current, R is resistance, and / is time. If the percentage errors in measuring I, R, and t are 2%, 1%,and 1%, respectively, then the maximum error in measuring heat will be

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a

2%

b

3%

c

4%

d

6%

answer is D.

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Detailed Solution

Required error is 2×2%+1%+1%, i.e., 6%.
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Get ₹ 1 crore* worth scholarship for JEE / NEET / Foundation
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Best Online Course for NEET
Best Online Course for CBSE
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The heat generated in a circuit is given by Q = I2Rt, where I is current, R is resistance, and / is time. If the percentage errors in measuring I, R, and t are 2%, 1%,and 1%, respectively, then the maximum error in measuring heat will be