QJEEM24Phbc85: JEE Main 2024 Physics - Class 11 JEEM24Phbc85 Solution: If the percentage errors in measuring the length and the…

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QJEEM24Phbc85: JEE Main 2024 Physics - Class 11 JEEM24Phbc85 Solution: If the percentage errors in measuring the length and the…

If the percentage errors in measuring the length and the diameter of a wire are $0.1 %$ each. The percentage error in measuring its resistance will be:

Multiple Choice Options

A 0.14%
B 0.20%
C 0.10%
D 0.30%

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Accepted Answer

$\begin{aligned} R = \frac{ρ L}{π \frac{d^{2}}{4}} \\ \frac{Δ R}{R} = \frac{Δ L}{L} + \frac{2 Δ d}{d} \\ \frac{Δ L}{L} = 0.1 % and \frac{Δ d}{d} = 0.1 % \\ \frac{Δ R}{R} = 0.3 % \end{aligned}$

QJEEM24Phbc85: JEE Main 2024 Physics - Class 11 JEEM24Phbc85 Solution: If the percentage errors in measuring the length and the…

Multiple Choice Options

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