Five equal resistances R are connected in the triangular configuration shown. A battery of V volts is connected between A and B. Current flowing in AFCEB will be: [Diagram: Image]
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Five equal resistances R are connected in the triangular configuration shown. A battery of V volts is connected between A and B. Current flowing in AFCEB will be: [Diagram: Image]

G1 Physics · Accepted Answer

Step 1: The outer D–C–E side has two resistors in series; branch through central F also contributes. Step 2: A and B lie at the ends of one branch; use symmetry to identify equivalent circuit. Step 3: Printed solution uses current division to obtain I = V/(2R).