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NTA Abhyas JEE Main2020PhysicsCurrent ElectricityPractice

Find the current I in the given circuit

Options

  1. A2 A
  2. B4 .5   A
  3. C6   A
  4. D1 .5   A

Correct answer

B. 4 .5   A

Step-by-step solution

For the batteries connected in parallel ε e q = 12 2 + 6 2 1 2 + 1 2 = 9 V , r e q = 1 2 + 1 2 - 1 = 1 Ω I = ε e q r e q + 1 = 9 2 = 4.5 A

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