Engineering
Physics
Resonance in AC Circuit
Question

A series LR circuit is connected to a voltage source with V(t)=V0 sinΩt. After very large time, current I(t) behaves as (t0>>LR) :

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Solution

V(t) = V0 sin Ωt

After a long time, the transients settle down and the current oscillates with Ω frequency.

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