In the following circuit rms current through inductor is 0.8 A, the rms current through capacitor is 0.4 A and rms current through resistor is 0.3 A, the current delivered by a.c. source is

Question

In the following circuit rms current through inductor is 0.8 A, the rms current through capacitor is 0.4 A and rms current through resistor is 0.3 A, the current delivered by a.c. source is (A) 0.7 A (B) 1.5 A (C) 0.5 A (D) Approximately 1 A

Tardigrade Admin · Accepted Answer

I =√IR2+(IL-Ic)2 =√(0.3)2+(0.8-0.4)2 =√(0.3)2+(0.4)2=0.5 A

Q. In the following circuit rms current through inductor is $0.8 A$ , the rms current through capacitor is $0.4 A$ and rms current through resistor is $0.3 A$ , the current delivered by a.c. source is

0.7 A

1.5 A

0.5 A

Approximately 1 A

$I = I_{R}^{2} + (I_{L} - I_{c})^{2}$
$= (0.3)^{2} + (0.8 - 0.4)^{2}$
$= (0.3)^{2} + (0.4)^{2} = 0.5 A$

Q. In the following circuit rms current through inductor is 0.8A, the rms current through capacitor is 0.4A and rms current through resistor is 0.3A, the current delivered by a.c. source is