The resistance R of a wire is given by the relation `R= (rhol)/( pir^(2))`. Percentage error in the measurement of `rho, l and r` is 1 % , 2% and 3% respectively. Then the percentage error in the measurement of R is

Options

A. 6
B. 9
C. 8
D. 10

Explanation

To find the percentage error in the resistance \( R \) of a wire given by the formula

\[ R = \frac{\rho l}{\pi r^2} \]

where \( \rho \) is the resistivity, \( l \) is the length, and \( r \) is the radius, we will use the concept of percentage errors in measurements.

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