The increased resistance of a wire if its length is doubled and original cross-sectional area is halved will be:
Given R - original resistance of wire)
1
\(\left(\frac{3}{4}\right)\)R
2
\(\frac{R}{4}\)
3
4R
4
3R
The increased resistance of a wire if its length is doubled and original cross-sectional area is halved will be:
Given R - original resistance of wire)