NEET Questions Solved

PMT - 1995

In the network shown in the figure, each of the resistance is equal to 2 Ω. The resistance between the points A and B is 

(1) 1 Ω

(2) 4 Ω

(3) 3 Ω

(4) 2 Ω

(4) The equivalent circuits are as shown below

 

Clearly, the circuit is a balanced Wheatstone bridge. So effective resistance between A and B is 2Ω.

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