In the network shown in the figure each of resistance is equal to 2Ω. The resistance between A and B is
(a) 1 Ω (b) 2 Ω (c) 3 Ω (d) 4 Ω
Correct option (b) 2 Ω
Explanation:
Taking the portion COD is figure to outside the triangle (left), the above circuit will be now as resistance of each is 2 Ω the circuit will behaves as a balanced wheatstone bridge and no current flows through CD. Hence RAB = 2Ω
