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7. The heat produced in a long wire is characterized byresistance, current and time through which the currentpasses. If the errors in measuring these. quantitiesare respectively 1%, 2% and 1%, then total error incalculating the energy produced is:20a1 |
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Answer» The heat produced in a wire due to current flow is give by H =I2Rt ∴ΔH/H = 2ΔI / I +ΔR/R +Δt / t =2 x 0.02 + 0.01 +0.01 = 0.06 =6% |
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