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JIPMER2018PhysicsCurrent Electricity

Find R_ net between A and B .

Options

  1. A60
  2. B40
  3. C70
  4. D20

Correct answer

B. 40

Step-by-step solution

In the circuit, the branch EGHF have three resistance of 10 , 20 and 10 , respectively which are connected in series combination. So, their equivalent resistance is given by R ₁=10+20+10=40 This R₁ resistance is parallel with 40 resistance which is connected in the branch EF. So, their equivalent resistance R ₂= 40 40 40+40 =20 Now, circuit becomes Now, t in the branch CEFD 10 , 20 and 10 resistance are connect in series combination their equivalent resistance is given by R ₃=10 +20 +40 =40 This R₃ is parallel with

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