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KVPY2014PhysicsCurrent Electricity

Consider the circuit shown below where all resistors are of 1 k If a current of magnitude 1 ~mA flows through the resistor marked X , what is the potential difference measured between point P and Q ?

Options

  1. A21 ~V
  2. B68 ~V
  3. C55 ~V
  4. D34 ~V

Correct answer

D. 34 ~V

Step-by-step solution

Using KCL At point A Current is 3 ~mA At point C Current is 8 ~mA At point E Current is 21 ~mA At point G Current through GH is 34 ma array l V _ PQ = V _ GH = i R _ GH =34 ~V array

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