Question

A wire of resistance 12 ohm is in the form of a circle. The resistance between the ends of a diameter is :

• A. 12 ohm
• B. 6 ohm
• C. 3 ohm
• D. 1.2 ohm

Answer 1

Answer: (C)

3 ohm

Answer 2

$\frac{1}{{{C}_{p}}}=\frac{1}{6}+\frac{1}{6}$ $=\frac{2}{6}=\frac{1}{3}$ ${{C}_{p}}=3\,\Omega$