Discussion
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- Question
What is the voltage across the capacitor?
Options- A. 7.07 V
- B. 1.11 V
- C. 111 mV
- D. 7.07 mV
- Correct Answer
- 111 mV
- 1. What is the total current for a 5 MHz, 1 Vac circuit that consists of a 27 pF capacitor and a 1 kΩ resistor connected in parallel?
Options- A. 459 µA
- B. 647 µA
- C. 1.31 mA
- D. 1.85 mA Discuss
- 2. If the reactive power of a circuit is 50 mW while the apparent power is 64 mW, then what is the true power of the circuit?
Options- A. 14 mW
- B. 36 mW
- C. 40 mW
- D. 114 mW Discuss
- 3. What is the dielectric constant for ceramic?
Options- A. between 6 and 8000
- B. 5.0
- C. between 5 and 1000
- D. 3000 Discuss
- 4. In a 20 Vac series RC circuit, if 20 V is measured across the resistor and 40 V is measured across the capacitor, the applied voltage is:
Options- A. 45 V
- B. 50 V
- C. 55 V
- D. 60 V Discuss
- 5. In an ac circuit, an output capacitor and a resistor are connected in series with an ac signal. What filter action will be the result?
Options- A. bandpass
- B. low-pass
- C. high-pass
- D. band-stop Discuss
- 6. As a capacitor is being charged, the voltage across its terminals will:
Options- A. increase
- B. decrease
- C. remain the same
- D. oppose the source Discuss
- 7. What is the reactance value for a capacitor installed in a dc circuit?
Options- A. zero
- B. moderate
- C. infinite
- D. cannot tell Discuss
- 8. What is the total capacitance?
Options- A. 1 F
- B. 12 F
- C. 0.615 F
- D. 8 F Discuss
- 9. Which material has the highest dielectric strength?
Options- A. Air
- B. Paper
- C. Mica
- D. Oil Discuss
- 10. Most older types of paper capacitors have been replaced by which type of construction?
Options- A. electrolytic
- B. plastic film
- C. oxide casing
- D. waxed paper Discuss
Capacitors problems
Search Results
Correct Answer: 1.31 mA
Correct Answer: 40 mW
Correct Answer: between 6 and 8000
Correct Answer: 45 V
Correct Answer: low-pass
Correct Answer: increase
Correct Answer: infinite
Correct Answer: 12 F
Correct Answer: Mica
Correct Answer: plastic film
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