| 1. | A capacitance is a circuit component that opposes the change in circuit ? | |
|
current
|
||
|
voltage
|
||
|
impedance
|
||
|
none of the above
|
||
View Answer
Discuss in Forum
Report Question| 2. | A condenser suitable for D.C. only is ? | |
|
metallic plate variable gang condenser
|
||
|
metallic paper capacitor
|
||
|
oil impregrated paper condenser
|
||
|
poled aluminium electrolytic condenser
|
||
| 3. | A ceramic and a mica capacitor have the same physical dimensions. Which has the higher value of capacitance ? | |
|
Ceramic capacitor
|
||
|
Mica capacitor
|
||
|
Both have identical value of capacitance
|
||
|
It is not possible to conclude on the basis of information supplied
|
||
| 4. | Electric intensity at any point in an electric field is equal to the ...... at that point ? | |
|
electric flux
|
||
|
magnetic flux density
|
||
|
potential gradient
|
||
|
none of the above
|
||
| 5. | The unit of dielectric strength is given by ? | |
|
V/m
|
||
|
v2/m
|
||
|
m/V
|
||
|
mN2
|
||
| 6. | Which of the following capacitors will have the least value of breakdown voltage ? | |
|
Mica
|
||
|
Paper
|
||
|
Ceramic
|
||
|
Electrolytic
|
||
| 7. | The sparking between two electrical contacts can be reduced by inserting a ? | |
|
capacitor in parallel with contacts
|
||
|
capacitor in series with each contact
|
||
|
resistance in line
|
||
|
none of the above
|
||
| 8. | A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance ? | |
|
Ceramic capacitor
|
||
|
Mica capacitor
|
||
|
Both will have identical value of capacitance
|
||
|
It depends on applied voltage
|
||
| 9. | When a dielectric slab is introduced in a parallel plate capacitor, the potential difference between plates will ? | |
|
remain uncharged
|
||
|
decrease
|
||
|
increase
|
||
|
become zero
|
||
| 10. | Dielectric strength of mica is ? | |
|
10 to 20 kV
|
||
|
30 to 60 kV/mm
|
||
|
50 to 200 kV/mm
|
||
|
300 to 500 kV/mm
|
||