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NTA Abhyas JEE Main2020PhysicsCurrent ElectricityPractice

For what value of R , (in ohm) the current in galvanometer is zero?

Correct answer

1

Step-by-step solution

i = 12 R + 5 Potential difference across R = 2 V = 12 R + 5 × R ∴ 2 = 12 R + 5 × R ⇒ R + 5 = 6 R ⇒ R = 1 Ω

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