A resistor of 1KandOmega;and an inductor of 5mH are connected in series with a battery of emf uv through a switch. The switch is closed at time t = 0 find the current(mA) flowing the circuit at 20 andmu;sec,Correct answer is '3.9-4'. Can you explain this answer?

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A resistor of 1KΩ and an inductor of 5mH are connected in series with a battery of emf uv through a switch. The switch is closed at time t = 0 find the current (mA) flowing the circuit at 20 μsec,

Correct answer is '3.9-4'. Can you explain this answer?

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A resistor of 1KΩand an inductor of 5mH are connected in series ...

At t = 0 , switch s is closed , let current following in the circuit at time t is i.
The induced emf developed is

At t = 0 ,i = 0

i = 3.92 mA

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A resistor of 1KΩand an inductor of 5mH are connected in series with a battery of emf uv through a switch. The switch is closed at time t = 0 find the current(mA) flowing the circuit at 20 μsec,Correct answer is '3.9-4'. Can you explain this answer?

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