JEE Main 2022 · 25 Jul · Shift 2 · Physics Q49

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PhysicsSingle correct+4 / -1Question 49 of 90

The maximum error in the measurement of resistance, current and time for which current flows in an electrical circuit are 1%, 2% and 3% respectively. The maximum percentage error in the detection of the dissipated heat will be :

Answer and worked solution

Official answer: D

$H=I^2Rt$ : $2(2)+1+3=8\%$ .

(D)

Topics:Errors in measurement

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JEE Main 2022 · 25 Jul · Shift 2, Physics question 49