The effective resistance between points P and Q of the electrical circuit shown in the figure is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
In a circuit, any circuit element placed between points at the same potential can be removed, without affecting the rest of the circuit. Here, by symmetry, points A, B and C are at same potential, for any potential difference between P and Q.
The circuit can therefore be reduced as shown below
Effective resistance 
.
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