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  4. Find the equivalent resistance about any branch of the base of the square pyramid shown. Assume resistance of each branch is R . <img class=img-fluid question-image alt=Question src=https://cdn.tardigrade.in/q/nta/p-vxccd6t3lze4.png />

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Q. Find the equivalent resistance about any branch of the base of the square pyramid shown. Assume resistance of each branch is $R$ .

Question

NTA AbhyasNTA Abhyas 2020Current Electricity

Solution:

Looking at the circuit from above, we can see that between any two adjacent points (let say A and B), the circuit is symmetric so the junction P can be disconnected.
Solution