First slide

combination of resistance

Question

Twelve wires of equal length and same cross-section are connected in the form of a cube. If the resistance of each of the wires is R , then the effective resistance between the two diagonal ends would be

Moderate

A

2R
B

12R
C

$\frac{5}{6} R$
D

8R

Solution

The given circuit can be simplified as follows
$∴ R_{AD} = \frac{5 R}{6}$

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