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k31453
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This is my question 1.
and this is my question 2.
in a RLC series circuit show above are replaced following : R=500Ω L=0.4mH and C=100pF
the circuit is connected to the terminals of an ac source with an rms voltage of 1V, and a variable frequency calculate the following
A) resonant frequency
ans: f = 1/2*pi*sqrt(LC)
= 1/(2*pi*sqrt(0.0004 * 100 * 10^-12)
= 795.77 Khz
b) the inductive and capacitive reactance at resonance
ans: XL = 2*pi*f*L
= 2*pi* 795.775*10^3*0.0004
= 2000 ohm
Xc = 1/(2*pi*f*C)
= 1/(2*pi* 795.775*10^3 * 100 * 10^-12)
= 1999.9998 ohm
C) the impedance at resonance
ans : impedence of resonance is resistance of circuit : z = R = 500 ohm
D) the rms current at resonance
ans: I = V/R = 1/500 = 0.002A
E) the rms voltage across each element at resonance
Ans: Vr = IR
= 0.002 * 500
= 1V
VL = IXL
= 0.002 * 2000
= 4V
Vc = IXc
= 0.002 * 1999.99
= 3.99998 V
So am i doing it right?? because
i got another reply that says this :
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