A wire of resistance 4 Ω is stretched to twice its original length. The resistance of the stretched wire would be:
A. 8 Ω
B. 16 Ω
C. 2 Ω
D. 4 Ω
Answer:B
A wire of resistance 4 Ω is stretched to twice its original length. The resistance of the stretched wire would be:
A. 8 Ω B. 16 Ω C. 2 Ω D. 4 Ω