QMobile was launched in ____________?
A. 2012
B. 2011
C. 2009
D. 2010
Month: December 2018
A capacitor in a circuit became hot and ultimately exploded due to wrong connections, which type of capacitor it could be ?
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 ?
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______________?
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______________?
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 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 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_____________?
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 ?
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 ?
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