Question

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

Answer 1

Answer: (B)

2 Ω

Answer 2

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 R_AB = 2Ω