Computer Programming MCQs

5739 MCQs  (Page 165 of 574)

For a good 0.05 uF capacitor ohmmeter reading should___________?
A. Show low resistance momentarily and back off to a very high resistance
B. Show high resistance momentarily and then a very low resistance
C. Go quickly to 50 ohm approximately and remain there
D. Not move at all
Which of the following statements is correct ?
A. Mica capacitors are available in capacitance values of 5 to 20 uf
B. Air capapitors have a black band to indicate the outside foil
C. Electrolytic capacitors must be connected in correct polarity
D. Ceramic capacitors must be connected in correct polarity
The presence of an uncharged conductor near a charged one increases the__________?
A. Charge of the charged conductor
B. Capacity of the charged conductor
C. Potential of the charged conductor
D. All of the above
Paper condenser is___________?
A. Always polarised
B. Usually of fixed value
C. Electrolytic condenser
D. A variable condenser
An uncharged conductor is placed near a charged conductor, then_____________?
A. The uncharged conductor gets charged by conduction
B. The uncharged conductor gets charged by induction and then attracted towards the charging body
C. The uncharged conductor is attracted first and then charged by induction
D. It remains as such
Mica capacitors are characterized by all of the following except___________?
A. Stable operation
B. Accurate value
C. Low leakage reactance
D. Low losses
The capacitance between two plates increases with____________?
A. Shorter plate area and higher applied voltage
B. Shorter plate area and shorter distance between them
C. Larger plate area, longer distance between plates and higher,applied voltage
D. Larger plate area and shorter distance between plates