A series RLC circuit consists of a 280 Ω resistor, a 25 mH inductor, and a...

Question

Question

A series RLC circuit consists of a 280 Ω resistor, a 25 mH inductor, and a 15 μF capacitor.

What is the rms current if the emf is supplied by a standard 120 V , 60 Hz wall outlet?

I HAVE ONE ATTEMPT LEFT

The answers I've put are: .105A, .302 A, .434A, 260 mA, .552 A and they've all been wrong

Answer 1

Answer #1

I = V/Z

Z = sqrt(R^2 + (XL-Xc)^2)

XL = 2*pi*f*L = 2*pi*60*25 * 10^-3

Xc = 1/2pif*C = 1/2pi*60*15*10^-6

R = 280 ohm

I = Vrms/Z = 120/Z

Irms =120/326.23

Irms = 0.3678 A

Answer 2

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