Air capacitors are generally available in the range_________?

Related Mcqs:

1. If three 10 uF capacitors are connected in parallel, the net cararitance is___________?

   A. 20 uF
   B. 30 uE
   C. 40 uF
   D. 50 uF

2. Which of the following capacitors has relatively shorter shelf life____________?

   A. Mica capacitor
   B. Electrolytic capacitor
   C. Ceramic capacitor
   D. Paper capacitor

3. Three capacitors each of the capacity C are given. The resultant capacity 2/3 C can be obtained by using them_____________?

   A. all in series
   B. all in parallel
   C. two in parallel and third in series with this combination
   D. two in series and third in parallel across this combination

4. capacitors are used for audio frequency and radio frequency coupling and tuning ?

   A. Air
   B. Mica
   C. Plastic film
   D. Ceramic

5. Mica capacitors are characterized by all of the following except___________?

   A. stable operation
   B. accurate value
   C. low leakage reactance
   D. low losses

6. capacitors are mainly used for radio frequency tuning?

   A. Paper
   B. Air
   C. Mica
   D. Electrolytic

7. Paper capacitors usually have a tolerance of___________?

   A. ± 5%
   B. ± 10%
   C. ± 15%
   D. ± 20%

8. For closer tolerances which of the following capacitors is usually preferred ?

   A. Paper capacitor
   B. Mica capacitor
   C. Ceramic disc capacitor
   D. None of the above

9. Which of the following capacitors can be used for temperature compensation ?

   A. Air capacitor
   B. Ceramic capacitor
   C. Paper capacitor
   D. None of the above

10. Which of the following capacitors is marked for polarity ?

    A. Air
    B. Paper
    C. Mica
    D. Electrolytic