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NTA Abhyas JEE Main2020PhysicsCurrent ElectricityPractice

The effective resistance between points P and Q of the electrical circuit shown in the figure is

Options

  1. AR 2
  2. BR
  3. C3 R 2
  4. D2 R

Correct answer

A. R 2

Step-by-step solution

According balanced wheat stone bridge 1 R e q = 1 2 R + 1 2 R + 1 R = 1 + 1 + 2 2 R = 2 R R e q = R 2

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