The amount of heat produced in an electric circuit depends upon the current (I) , resistance (R) and time (t) . If the error made in the measurements of the above quantities are 2 \%, 1 \% and 1 \% respectively then the

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Correct answer: C. 6 \%

Given : (Δ I)/(I) × 100=2 \% ; (Δ R)/(R) × 100=1 \% and (Δ t)/(t) × 100=1 \% Heat produced, H=I^2 R t Maximum possible error in heat produced, aligned & =(Δ H)/(H) ×100 & =2((Δ I)/(I) ×100)+(Δ R)/(R) ×₁₀₀⁺(Δ t)/(t) ×100 & =2 ×2 \%+1 \%+1 \%=6 \% aligned

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