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NEET 2004 Physics question

PhysicsElectromagnetic InductionNEET 2004

A coil of 40 henry inductance is connected in series with a resistance of 8 ohm and the combination is joined to the terminals of a 2 volt battery. The time constant of the circuit is :-

Answer: (4)

Solution

For an L-R circuit the time constant is s. It

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Question ID VK-089379