| 1. | An electrolytic capacitor can be used for ? | |
|
D.C. only
|
||
|
AC. only
|
||
|
both D.C. as well as A.C.
|
||
|
none
|
||
View Answer
Discuss in Forum
Report Question| 2. | The capacitance of a capacitor is not affected by ? | |
|
distance between plates
|
||
|
area of plates
|
||
|
thickness of plates
|
||
|
all of the above
|
||
| 3. | The dissipation factor of a good dielectric is of the order of ? | |
|
0.0002
|
||
|
0.002
|
||
|
0.02
|
||
|
0.2
|
||
| 4. | In a capacitor the electric charge is stored in ? | |
|
metal plates
|
||
|
dielectric
|
||
|
both (a) and (b)
|
||
|
none of the above
|
||
| 5. | Which of the following capacitor will have the least variation ? | |
|
Paper capacitor
|
||
|
Ceramic capacitor
|
||
|
Silver plated mica capacitor
|
||
|
None of the above
|
||
| 6. | In a capacitive circuit ? | |
|
a steady value of applied voltage causes discharge
|
||
|
an increase in applied voltage makes a capacitor charge
|
||
|
decrease in applied voltage makes a capacitor charge
|
||
|
none of the above
|
||
| 7. | "The surface integral of the normal component of the electric displacement D over any closed surface equals the charge enclosed by the surface". The above statement is associated with ? | |
|
Gauss's law
|
||
|
Kirchhoff's law
|
||
|
Faraday's law
|
||
|
Lenz's law
|
||
| 8. | An equipotential surface is one which has all points at ...... potential ? | |
|
same
|
||
|
different
|
||
|
zero
|
||
|
none of the above
|
||
| 9. | The time constant of an R-C circuit is defined as the time during which capacitor charging voltage actually rises to ...... percent of its ...... value ? | |
|
37, initial
|
||
|
63.2, initial
|
||
|
63.2, final
|
||
|
37, final
|
||
| 10. | Dielectric strength of a medium IS usually expressed in ? | |
|
J/mm
|
||
|
C/m2
|
||
|
kV/mm
|
||
|
N/mm
|
||