find the resistance of a wire of length 5m resistivity 4×10^minus 6 ohm meter and area 0.001mm^2
Answers
Answered by
1
Explanation:
Given
l = 5 cm
p (rho) = 4*10^-6 oh m
A = 0.001 mm^2
= 0.000001 m^2
By applying formula
R= p*l/A
R= 4*10^-6* 5 / 0.000001
R= 4*5 * 10^-6 *10^6
R= 20 ohm ( 10^6 and 10^-6 cancel each other)
I hope it is correct.
Similar questions