A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ?

A. Paper capacitor
B. Ceramic capacitor
C. Electrolytic capacitor
D. Any-of the above

Which of the following capacitors is marked for polarity ?

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

The power dissipated in a pure capacitor is______________?

A. Zero
B. Proportional to applied voltage
C. Proportional to value of capacitance
D. Both (b) and (c) above

When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will______________?

A. Remain uncharged
B. Decrease
C. Increase
D. Become zero

A capacitor consists of_____________?

A. Two insulators separated by a conductor
B. Two conductors separated by an insulator
C. Two insulators only
D. Two conductors only

A paper capacitor is usually available in the form of_____________?

A. Tubes
B. Rolled foil
C. Disc
D. Meshed plates

The absolute permittivity of free space is given by_____________?

A. 8.854 x 1(t9 f/m)
B. 8.854 x 1(t10 f/m)
C. 8.854 x kt11 f/m
D. 8.854 x 10″12 f/m

Which of the following statements is incorrect ?

A. The thinner the dielectric, the more the capacitance and the lower the voltage breakdown rating for a capacitor .
B. A six dot mica capacitor colour coded white, green, black, red and yellow has the capacitance value of 500 pf
C. Capacitors in series provide less capacitance but a higher voltage breakdown rating for the combination
D. A capacitor can store charge because it has a dielectric between two conductors

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

The value of dielectric constant for vacuum is taken as____________?

A. Zero
B. 1
C. 4
D. 10