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Question: Answered & Verified by Expert
Thirteen resistances each of resistance R Ω are connected in the circuit, as shown in the figure. The effective resistance between A and B is

PhysicsCurrent ElectricityNEET
Options:
  • A 2R Ω
  • B 4R3  Ω
  • C 2R3 Ω
  • D R Ω
Solution:
1544 Upvotes Verified Answer
The correct answer is: 2R3 Ω
From symmetry, we get the following circuit diagram for half circuit,



For half circuit, R=R3.

Req=2R3

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