Question

In a series LR circuit L = 35mH & R = 11 ohm V = V0sinwt of Vrms = 220V & frequency 50Hz are applied. Find The current Amplitude in the circuit & phase of current with respect to voltage Draw reactance Frequency graph.

Answer 1

In a series LR circuit L = 35mH & R = 11 ohm V = V0sinwt of Vrms = 220V & frequency 50Hz are applied. Find The current A...
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Answer 2

L = 35mH
V = V0sinwt
Vrms = 220V
W = 2piV
2pi * 50 = 100pi sec^-1
T = V/Z
= (2Vrms)1/2 / (XL^2 + R^2)1/2
= (2)1/2*220/[(100pi * 35*10^-3)^2]1/2 + 11^2
= (2)1/2*220 / [(10^-1*22/7*35)]^2 + 11^1/2
= (2)1/2*220/[(22*5/10^2)]^2 +121
= (2)1/2*220/(11^2+121)1/2
= (2)1/2*220/11^2+11^2
= (2)1/2/(2)1/2 * 220*11
= 20A
. 20 Ampare