logo

CuriousTab

CuriousTab

Discussion


Home Electrical Engineering Capacitors Comments

  • Question
  • Of the following capacitors, which one has the highest dielectric constant?


  • Options
  • A. air
  • B. mica
  • C. glass
  • D. paper

  • Correct Answer
  • glass 


  • Capacitors problems


    Search Results


    • 1. A 0.00022 F capacitor equals how many microfarads?

    • Options
    • A. 22 µF
    • B. 220 µF
    • C. 2,200 µF
    • D. 22,200 µF
    • Discuss
    • 2. A 220 Ω resistor is in series with a 2.2 µF capacitor. The time constant is

    • Options
    • A. 48 µs
    • B. 480 µs
    • C. 2.42 µs
    • D. 24 µs
    • Discuss
    • 3. Four 0.15 µF capacitors are in parallel. The total capacitance is

    • Options
    • A. 0.15 µF
    • B. 0.30 µF
    • C. 0.6 µF
    • D. 0.8 µF
    • Discuss
    • 4. A 0.01 µF capacitor equals how many picofarads?

    • Options
    • A. 100 pF
    • B. 1,000 pF
    • C. 10,000 pF
    • D. 100,000 pF
    • Discuss
    • 5. What is the capacitance when Q = 60 µC and V = 12 V?

    • Options
    • A. 720 µF
    • B. 5 µF
    • C. 50 µF
    • D. 12 µF
    • Discuss
    • 6. A 4.7 MΩ resistor is in series with a 0.015 µF capacitor. The combination is across a 12 V source. How long does it take the capacitor to fully charge?

    • Options
    • A. 35 ms
    • B. 352 ms
    • C. 3.5 s
    • D. 70.5 ms
    • Discuss
    • 7. A 12 kHz voltage is applied to a 0.33 µF capacitor, and 200 mA of rms current is measured. What is the value of the voltage?

    • Options
    • A. 8 V
    • B. 80 V
    • C. 80 mV
    • D. 800 mV
    • Discuss
    • 8. A 10 µF, 20 µF, 22 µF, and 100 µF capacitor are in parallel. The total capacitance is

    • Options
    • A. 2.43 µF
    • B. 4.86 µF
    • C. 100 µF
    • D. 152 µF
    • Discuss
    • 9. Which of the following capacitors is polarized?

    • Options
    • A. mica
    • B. ceramic
    • C. plastic-film
    • D. electrolytic
    • Discuss
    • 10. When the voltage across a capacitor is tripled, the stored charge

    • Options
    • A. triples
    • B. is cut to one-third
    • C. stays the same
    • D. doubles
    • Discuss


    Comments

    There are no comments.

Enter a new Comment