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- 1. Multiple ChoiceThe capacitance of a parallel-plate capacitor can be increased by:increasing the chargedecreasing the chargeincreasing the plate separationdecreasing the plate separation
- 2. Multiple ChoiceWhat is the voltage across the plates of the capacitor if the capacitance is 10 uF and the Charge stored is 30 uC?0.333 V3 V300 V
- 3. Multiple Choice------------------------ is created out of two metal plates and an insulating material called a dielectric.An inductorA capacitorA fixed resistorA variable resistor
- 4. Multiple ChoiceIn the capacitor, the dielectric can be made out of all sorts of ---------- materials and the plates are made of a -------------- material.conductive, insulatingconductive, conductiveinsulating, conductiveinsulating, insulating
- 5. Multiple Choice
The figure to the right represents:CapacitorDiodeInductorResistor - 6. Multiple Choice
With respect to the capacitor, which relationship is true? •
C = Q×V
V = C×Q
V = Q/C
Q = C/V
- 7. Multiple ChoiceWith respect to the capacitor, which relationship is true?C = Q/VV = C×QQ = C/VQ = V/C
- 8. Multiple Choice
How is the capacitance (C) of a parallel-plate capacitor affected by the charge on the plates ?
C depend on the charge on the plates
C is vanished when there are plates
C does not depend on the charge on the plates
C is accumulated on one side only
- 9. Multiple Choice
How is the capacitance of a parallel-plate capacitor affected by the potential difference across the capacitor ?
C depend on the potential difference across the capacitor
C does not depend on the potential difference across the capacitor
C partially depend on the potential difference across the capacitor
C sometime depend on the potential difference across the capacitor
- 10. Multiple Choice
How is the capacitance of a parallel-plate capacitor affected by the area of each plate?
C is directly proportional to the area A of each plate
C is inversely proportional to the area A of each plate
C is partially proportional to the area A of each plate
C is fully proportional to the area A of each plate
- 11. Multiple Choice
How is the capacitance of a parallel-plate capacitor affected by the distance between the plates ?
C is directly proportional to the area A of each plate
C is inversely proportional to the distance d between the plates
C is partially proportional to the area A of each plate
C is not affected by the area A of each plate
- 12. Multiple Choice
How is the capacitance of a parallel-plate capacitor affected by filling the space between the plates with an insulator ?
C stable when the space between the plates is filled with an insulator, εr >1
C reduces when the space between the plates is filled with an insulator, εr >1
C increases when the space between the plates is filled with an insulator, εr >1
C fluctuate when the space between the plates is filled with an insulator, εr >1
- 13. Multiple ChoiceIf C is the capacitance in Farads, ϵ permittivity of the dielectric, A area of plate overlap in square meters and d distance between plates in meters, then:C = ϵd/AC = A/ϵdC = ϵA/dC = d/ϵA
- 14. Multiple ChoiceIf the capacitance is 47μF, and the voltage difference across the capacitor terminals is 6V, then the energy stored in that capacitor is:846×10-6Joule7.23×10-3 Joule6.76×10-5Joule5.94×10-2Joule
- 15. Multiple ChoiceWhat is the voltage across the plates of the capacitor if the capacitance is 10 uF and the Charge stored is 30 uC?0.333 V3 V300 V
- 16. Multiple Choice
The plates of a parallel-plate capacitor are 2.50mm apart, and each carries a charge of magnitude 80.0nC. The plates are in vacuum. The electric field between the plates has a magnitude of 4.00x106V/m. What is the potential difference between the plates?
2.00x104V
1.75x104 P.D.
1.00x10-4P
1.00x104V
not solvable! because capacitor has no potential difference because it should have an insulator in between.
- 17. Multiple Choice
from question 16:
The plates of a parallel-plate capacitor are 2.50mm apart, and each carries a charge of magnitude 80.0nC. The plates are in vacuum. The electric field between the plates has a magnitude of 4.00x106V/m.
What is the area of each plates?
2.26x10-3cm2
2.26x10-3m2
22.6m2
2.26cm2
none of the above
- 18. Multiple Choice
The plates of a parallel-plate capacitor are 2.50mm apart, and each carries a charge of magnitude 80.0nC. The plates are in vacuum. The electric field between the plates has a magnitude of 4.00x106V/m.
what is the capacitance?
zero
same as potential difference 4.00pF
8.99pF
8pF
8.00x10-9F
- 19. Multiple Choice
Is it correct to say that the capacitance is inversely proportional to the area of the parallel plates?
True
False
- 20. Multiple Choice
Capacitor is a device use to store energy. Therefore a solar cell is a type of capacitor.
True
False
- 21. Multiple Choice
When capacitors is arrange in series (3 capacitors), the equivalent capacitance C is
C = C1 + C2 + C3
1/C = 1/C1 + 1/C2 + 1/C3
C = QV1 + QV2 + QV3
C = CR1 + CR2 + CR3
- 22. Multiple Choice
When capacitors in parallel (3 capacitors), the equivalent capacitance is
C = C1 + C2 + C3
C = 1/C1 + 1/C2 + 1/C3
C = QV1 + QV2 + QV3
C = QV1 + QV2 + QV3
- 23. Multiple Choice
1. A ____________ connection has 2 or more components connected so that there is more than one path for current to flow.
series
parallel
series/parrallel
polarized
- 24. Multiple Choice
2. A ____________ connection has 2 or more components connected so that there is only 1 path for current to flow
perpendicular
parallel/series
polarized
series
- 25. Multiple Choice
6. The total capacitance of two capacitors connected in series is _____________ the lowest value capacitor
equal to
opposite
greater than
less than
- 26. Multiple Choice
7. Electrical prints use standard symbols and abbreviations to show ___________ operation and device use.
battery
circuit
switch
capacitor
- 27. Multiple ChoiceEach of the four capacitors shown is 500 mF. The voltmeter reads 1000V. The magnitude of the charge on each capacitor plate is:0.2 C0.5 C20 C50 C
- 28. Multiple ChoiceTwo identical capacitors are connected in series and two, each identical to the first, are connected in parallel. The equivalent capacitance of the series connection is ________ the equivalent capacitance of parallel connection.twicefour timeshalfone fourth
- 29. Multiple ChoiceCapacitors C1 and C2 are connected in parallel and a potential difference is applied to the combination. If the capacitor that is equivalent to the combination has the same potential difference, then the charge on the equivalent capacitor is the same as:the charge on C1the sum of the charges on C1 and C2the difference of the charges on C1 and C2the product of the charges on C1 and C2
- 30. Multiple Choice
If 4μF and 2μF capacitors are conneced in series, the equivalent capacitor is ___________.
1.33μF
0.75μF
6μF
2μF
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