Question
An RLC series circuit has a 2.60 Ω resistor, a 110 µH inductor, and a 70.0 µF capacitor.
(a) Find the circuit's impedance (in Ω) at 120 Hz.
(b) Find the circuit's impedance (in Ω) at 5.00 kHz.
(c) If the voltage source has Vrms = 5.60 V, what is Irms (in A) at each frequency?
(d) What is the resonant frequency (in kHz) of the circuit?
(e) What is Irms (in A) at resonance?
(a) Find the circuit's impedance (in Ω) at 120 Hz.
(b) Find the circuit's impedance (in Ω) at 5.00 kHz.
(c) If the voltage source has Vrms = 5.60 V, what is Irms (in A) at each frequency?
(d) What is the resonant frequency (in kHz) of the circuit?
(e) What is Irms (in A) at resonance?
Answers
Damon
w = 2 pi f
impedance = sqrt [ R^2 + (wL-1/wC)^2 ]
if f = 120 Hz, w = 2 pi f = 754
impedance = sqrt [2.6^2 + (754*110*10^-6 - 1/754*70*10^-6 )^2]
repeat for new f
i = V/impedance = 5.6/impedance
at resonance w = 2 pi f = 1/sqrt(LC)
then
impedance = sqt [ R^2 + ( sqrt L/C - sqrt L/C)^2) ] = R
so i = V/R
impedance = sqrt [ R^2 + (wL-1/wC)^2 ]
if f = 120 Hz, w = 2 pi f = 754
impedance = sqrt [2.6^2 + (754*110*10^-6 - 1/754*70*10^-6 )^2]
repeat for new f
i = V/impedance = 5.6/impedance
at resonance w = 2 pi f = 1/sqrt(LC)
then
impedance = sqt [ R^2 + ( sqrt L/C - sqrt L/C)^2) ] = R
so i = V/R
laila
I show you a picture of an aduld figure hovering over a sleeping child . I ask you to tell me a story about what you think is happening.Which king of projective test am I using?
laila
Carol is most likely to reject the ___________ theory of aging because she pictures the body as a mach that stops working properly as the parts wear out.
laila
Which of the following statements regarding adolescent suicide is not true ?