______C_____
l---------------------l
l---------------------l
R-----------------L
l---------------------l
l---------------------l
l-------~------------l
what is the value of the inductance L so that the above circuit carries the largest current?
data: R= 2.69 x 10^2 ohm, f=1.81 x 10^3 Hz, C=6.10 x 10^-3 F, Vrms = 7.29 x 10^1 V
2007-10-19 10:01:06 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
using the inductance found in the previous problem, what is the impedence seen by the voltage source?
2007-10-19 10:02:52 · update #1
R, L and C are in series? Then at resonance, capacitive reactance and inductive reactance sum to 0 and the current is determined by the resistance. Thus the impedance = Ri + 0j. The resonant frequency of an L-C circuit is
F = 1/(2pi*sqrt(LC))
L = (2piF)^2/C
2007-10-19 11:42:31 · answer #1 · answered by kirchwey 7 · 0⤊ 0⤋
Okay so actually your system is in resonance so XL=xC and Z = R
2015-10-28 08:59:47 · answer #2 · answered by Tessa 1 · 0⤊ 0⤋
at resonance only the resistance is left I = V/R
2007-10-19 10:25:19 · answer #3 · answered by Anonymous · 0⤊ 2⤋