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Simple Circuit

A frame is fo...

Question

A frame is formed by nine identical wires of resistance R each as shown in the figure.

The equivalent resistance between A and B is

A

\frac{5}{11} R

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B

\frac{1}{11} R

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C

\frac{15}{11} R

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D

\frac{6}{11} R

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Solution

The correct option is C $\frac{15}{11} R$
Apply Kirchoff’s law and use the concept of symmetry / anti-symmetry as well.

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