- 1 5 Pts In North America The Frequency Of Ac Utility Voltage Is 60 Hz The Period Is A 8 3 Ms B 16 7 Ms C 60 Ms D 1 (26.94 KiB) Viewed 20 times
- 1 5 Pts In North America The Frequency Of Ac Utility Voltage Is 60 Hz The Period Is A 8 3 Ms B 16 7 Ms C 60 Ms D 2 (25.37 KiB) Viewed 20 times
- 1 5 Pts In North America The Frequency Of Ac Utility Voltage Is 60 Hz The Period Is A 8 3 Ms B 16 7 Ms C 60 Ms D 3 (23.48 KiB) Viewed 20 times
- 1 5 Pts In North America The Frequency Of Ac Utility Voltage Is 60 Hz The Period Is A 8 3 Ms B 16 7 Ms C 60 Ms D 4 (27.1 KiB) Viewed 20 times
5. (5 pts) A step-up transformer refers to one in which a. The voltage across the secondary is higher than the primary. b. The current in secondary is higher than the primary. c. The power to the load is higher than delivered to the primary d. All of the above 6. (5 pts) If you increase the frequency in a series RC circuit, a. the total impedance will increase b. the reactance will not change c. the phase angle will decrease d. none of the above 7. (5 pts) In a series RL circuit, there is a frequency at which the magnitude of the inductive reactance is equal to the resistance. At this frequency, the phase shift between the source voltage and source current is a.0⁰ b. 45° c. 90° d. 120°
8. (5 pts) At the cutoff frequency, the output of a filter is a. equal to the input b. -3 dB c.-6 dB d.-20 dB 9. (5 pts) The basic filter circuit shown is a a. low-pass b. high-pass c. band-pass d. band-stop 10. (5 pts) To apply the superposition theorem, all sources but the one of interest are replaced with a. a short b. an open c. their internal impedance d. an impedance equal to the load RE C= HH ww R - Vout
11. (5 pts) A Thevenin circuit is a a. voltage source in parallel with an impedance b. voltage source in series with an impedance c. current source in parallel with an impedance d. current source in parallel with an impedance 12. (5 pts) Compared to the original circuit that it replaces, an equivalent circuit will always have a. the same power dissipation. b. the same number of components c. the same voltage and current for a specific load d. all of the above 13. (5 pts) The circuit for a low-pass filter is the same as the circuit for a. an integrator b. a differentiator c. both of the above d. none of the above 14. (5 pts) To deliver maximum power to a load impedance from a fixed source impedance, the load should be a. identical to the source impedance b. the complex conjugate of the source impedance c. only the resistive portion of the source impedance d. only the reactive portion of the source impedance