Engineering Board Exam Reviewer · RC Circuits · medium

A 100, resistor and a 22, F capacitor are connected in series across a 120 V, 60 Hz source. Find the current.

  1. 0.766 A
  2. 0.544 A
  3. 1.2 A
  4. 0.995 A

Answer

A. 0.766 A

Solution

XC= 12π(60)(22×10-6)=121, . |Z|=sqrt(1002+1212)=157, . I=V/|Z|=120/157, =0.766 A.

More RC Circuits questions

  1. A 1 k resistor and a 0.1, F capacitor are connected in series across a 1 kHz source. Find the magnitude of the total impedance.
  2. In the parallel RC circuit shown, a 480 V (rms) source with =10000 rad/s feeds R=48, and C=5, F in parallel. By how many degrees does the…
  3. In the parallel RC circuit shown, a 96 V (rms) source with =10000 rad/s feeds R=6, and C=12.5, F in parallel. Find the magnitude of the…
  4. In the parallel RC circuit shown, a 120 V (rms) source with =10000 rad/s feeds R=12, and C=20, F in parallel. Find the total current drawn…
  5. In the series RC circuit shown, a 340 V (rms) source with =5000 rad/s is connected to R=150, and C=2.5, F. Find the apparent power…
  6. In the series RC circuit shown, a 255 V (rms) source with =2000 rad/s is connected to R=150, and C=6.25, F. Find the real power dissipated…
  7. In the series RC circuit shown, a 50 V (rms) source with =10000 rad/s is connected to R=12, and C=6.25, F. By how many degrees does the…
  8. In the series RC circuit shown, a 75 V (rms) source with =500 rad/s is connected to R=15, and C=100, F. Find the voltage across the…
  9. In the series RC circuit shown, a 85 V (rms) source with =2000 rad/s is connected to R=75, and C=12.5, F. Find the voltage across the…
  10. In the series RC circuit shown, a 232 V (rms) source with =5000 rad/s is connected to R=84, and C=2.5, F. Find the current drawn from the…

All RC Circuits questions