engineering recuitment ISRO Technician Electronic Mechanic Mock Test Physics Current, Resistance and Electricity Resistance and Resistivity
A cylindrical conductor of length 'l' and uniform area of cross-section 'A' has resistance R. Another conductor of length 2l and resistance R of the same material has an area of cross-section of?
1
A/2
2
3A/2
3
2A
4
3A