Question

A piece of resistance wire has resistance of 4Ω. It is doubled on itself. Now its resistance will be –

• A. 8Ω
• B. 2Ω
• C. 4Ω
• D. 1Ω

Answer 1

Answer: (D)

1Ω

Answer 2

∴ R_AB = $\frac{R}{4}$