Physics XII Content

Ac through inductor only

ac through inductor only
Let an alternating emf be applied to a circuit containing inductor only such type of circuit is called inductive circuit.
Let the emf applied to the circuit is
ac through inductor onlythen the induced emf across the inductor is
ac through inductor only
This emf opposes the growth of current in the circuit.
Applying kirchhoff’s voltage law in the loop of fig a
ac through inductor only
integrating above expression we get
ac through inductor only
This is the form of alternating current developed in the purely inductive circuit. equation i and ii shows that in a purely inductive circuit alternating emf leads the alternating current by π/2

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