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The heat generated in a circuit is given...

The heat generated in a circuit is given by `Q = I^(2) Rt` , where `I` is current , `R` is resistance , and `t` 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

A

`2%`

B

`3%`

C

`4%`

D

`6%`

Text Solution

Verified by Experts

The correct Answer is:
D
`Q i^(2) Rt, (DeltaQ)/(Q) xx100 = (2Delta i)/(i) xx100 + (Delta R)/(R) xx100 + (Delta t)/(t) xx100`
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