A 120 V a.c. source is connected across a pure inductor of inductance 0.70 H. If the frequency of the source is 60 Hz, the current passing through the inductor is (Neglect spin motion): (Taken π = 22/7)

Question:

Options :

(a) 4.55 A
(b) 0.355 A
(c) 0.455 A
(d) 3.55 A

Answer :

Answer Steps :

step 1

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An alternating voltage source is connected in series with a resistance R and an inductance L. If the potential drop across the resistance is 200 V and across the inductance is 150 V, then the applied voltage is:

In an a. c. circuit the instantaneous current and e.m.f. are represented as: I = I0 sin(ωt – π/6) and E = E0 sin(ωt + π /3) respectively. The voltage leads the current by

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