A)
X-sectional area Length Double Double
B)
X-sectional area Length Double No change
C)
X-sectional area Length No change Half
D)
X-sectional area Length Half No change
Correct Answer: D
Solution :
Resistance of a wire is inversely proportional to its area of cross section. Therefore, reducing the area of cross section by half will double the resistance without any change in the length.You need to login to perform this action.
You will be redirected in
3 sec