ElectroMagnetic InductionHard
Question
In the circuit shown below, the key K is closed at t = 0. The current through the battery is
Options
A.
at t = 0 and 
at t = ∞
at t = 0 and at t = ∞ B. at t = 0 and 
at t = ∞
at t = 0 and at t = ∞C. at t = 0 and 
at t = ∞
at t = 0 and at t = ∞D.
at t = 0 and 
at t = ∞
at t = 0 and at t = ∞Solution
At t = 0, inductor behaves like an infinite resistance
So at t = 0, i =
and at t = ∞, inductor behaves like a conducting wire
So at t = 0, i =
and at t = ∞, inductor behaves like a conducting wire
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