At what frequency will a 32.0- mH inductor have a reactance of 660 Ω?
1. At what frequency will a 32.0-mH inductor have a reactance of 660 Ω?
2. What is the reactance of a 9.2-μF capacitor at a frequency of (a) 60.0 Hz, (b) 1.00 MHz?
3. A 3800-pF capacitor is connected in series to a 26.0-μH coil of resistance 2.00 Ω. What
is the resonant frequency of this circuit?
4. Determine the total impedance, phase angle, and current in an LRC circuit connected to a 10.0-kHz, 1025-V (peak value) source if L = 32.0 mH, R = 8.70 kΩ, and C = 6250 pF.
More Questions From This User See All
Answers & Comments
Verified answer
I'll give you hints, not answers.
1. Z (impedance) of an inductor = j2(pi)(f)L
2. Z of a capacitor = 1/(j2(pi)(f)C).
3. Set Z capacitor equal to Z inductor and solve for f. But this time, add '2' (without a j) to the impedance of the inductor.
4. Use circuit analysis using the Z's given above. The phase angle is calculated as follows.
Ztotal = a+Bj
phase angle = arctan(B/a). Make sure the angle corresponds to the quadrant a and B are referring to.
Good luck.