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Olympiad workbookNSEPCurrent Electricity

Each of 9 sides of frame A CD E F B has resistance R (Nine in all) A current I enters at A and leaves at B. Choose the correct alternatives.

Options

  1. ACurrents in branches CD and EF are zero.
  2. BCurrents in branches CE and DF are each equal to 4 11 I
  3. CEffective resistance between A and B is 15 11 R
  4. DEffective resistance between A and B is 3 4 R

Correct answer

C. Effective resistance between A and B is 15 11 R

Step-by-step solution

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