engineering recuitment ICAR Technician 2021 Mock Test (Re-Exam) Physics Current, Resistance and Electricity Resistance and Resistivity
A wire of length of L, area A and resistance R, is stretched to twice to its length. Then this wire is connected to a battery of potential V. After 10 mins, resistance is measured. The new resistance is
1
2R
2
3R
3
4R
4
6R