Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Physics Current Electricity
A 0.5 m long wire has a resistance of 1 Ω. What will be the resistance of a 2 m long wire of the same material and the same cross-sectional area?
1
0.25 Ω
2
4 Ω
3
2 Ω
4
More than one of the above
5
None of the above