Discussion
Home ‣ Electrical Engineering ‣ RC Circuits See What Others Are Saying!
- Question
The impedance of a series RC circuit varies directly with frequency.
Options- A. True
- B. False
- Correct Answer
- False
- 1. Materials with a low retentivity do not retain a magnetic field very well.
Options- A. True
- B. False Discuss
- 2. Referring to the given circuit, L
Options- A. must be in parallel with RL
- B. must be placed in parallel with VS
- C. must have a reactance equal to XC
- D. has no effect on the result Discuss
- 3. Reluctance in a magnetic circuit is analogous to current in an electrical circuit.
Options- A. True
- B. False Discuss
- 4. A simple two-phase generator consists of two conductive loops separated by 90°, rotating in a magnetic field.
Options- A. True
- B. False Discuss
- 5. In a certain five-step R/2R ladder network, the smallest resistor value is 1 kΩ. The largest value is
Options- A. indeterminable
- B. 2 kΩ
- C. 10 kΩ
- D. 20 kΩ Discuss
- 6. The power factor (PF) indicates how much of the apparent power is true power.
Options- A. True
- B. False Discuss
- 7. In Question 6, the capacitor will reach full charge in a time equal to approximately
Options- A. 6 RC
- B. 5 RC
- C. RC
- D. none of the above Discuss
- 8. What is the value of the hypotenuse of a right triangle whose sides are 12 and 18?
Options- A. 4.24
- B. 3.46
- C. 2.16
- D. 21.63 Discuss
- 9. The power factor indicates how much of the apparent power is reactive power.
Options- A. True
- B. False Discuss
- 10. In a Y-connected circuit, between each line voltage and the nearest phase voltage, there is a phase angle of
Options- A. 0°
- B. 30°
- C. 60°
- D. 120° Discuss
More questions
Correct Answer: True
Correct Answer: has no effect on the result
Correct Answer: False
Correct Answer: True
Correct Answer: 2 kΩ
Correct Answer: True
Correct Answer: 5 RC
Correct Answer: 21.63
Correct Answer: False
Correct Answer: 30°
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