Question

The heat generated in a circuit is given by Q = I² 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%

Answer 1

Answer:

Q=I  2 Rt

⇒  ΔQ  =  2ΔI+  ΔR +  Δt

    Q           I        R        t

⇒ ΔQ ×100=2(2)+1+1

     Q

⇒ ΔQ ×100=6%

     Q

Explanation

Answer 2

Answer:

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Explanation:

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