Free Printable Capacitor Quiz Ullens

Worksheets

Capacitor Quiz Ullens

Total questions: 22

Worksheet time: 15mins

Name

Class

Date

The dimensional formula of capacitance is

(a)

Capacitor is a device used to__________

store electrical energy

vary the resistance

store magnetic energy

dissipate energy

Capacitor blocks__________ after long time.

alternating current

direct current

both alternating and direct current

neither alternating nor direct current

What is the value of capacitance of a capacitor which has a voltage of 4V and has 16C of charge?

For which medium capacitance is high?

Air

Mica

Water

Metal

The capacitance between two plates increases with

Shorter plate area and higher applied voltage

Shorter play area and shorter distance between them

Larger plate area, longer distance between plates and higher applied voltage

Larger plate area and shorter distance between plates

The capacitance of 1 μF equals

10 ^-12 F

10^-8 F

10^-6 F

10^-4 F

Unit of capacitance is___________

Volts

Farad

Henry

Newton

What are the factors that influence capacitance of a capacitor?

Surface area

Temperature

Dielectric

Length

Distance between plates

10.

What is a dielectric?

Two electrons flowing in a circuit

The two metal plates in a capacitor

Insulating material between the plates in a capacitor

Conducting liquid between electrodes in a battery

11.

A 5uF, a 10uF and a 20uF capacitor are connected in SERIES to a 6V battery. Calculate the total equivalent capacitance of the circuit?

35uF

0.35uF

2.857uF

0.0286uF

12.

What formula does the above formula represent?

Parallel capacitance

Series resistance

Parallel resistance

Series capacitance

13.

A parallel plate capacitor is connected to a cell of constant emf. The plates are moved further apart without disconnecting the cell. What happens to the capacitance and voltage across the plates?

capacitance increases; voltage remains constant

capacitance remains constant; voltage decreases

capacitance decreases; voltage increases

capcitance decreases; voltage remains constant

14.

Capacitors 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 C₁

the sum of the charges on C₁ and C₂

the difference of the charges on C₁ and C₂

the product of the charges on C₁ and C₂

15.

Two 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.

twice

four times

half

one fourth

16.

Capacitors C₁ and C₂ are connected in series. The equivalent capacitance is given by:

C₁C₂/(C₁ + C₂)

(C₁ + C₂)/C₁C₂

1/(C₁ + C₂)

C₁ + C₂

17.

A parallel-plate capacitor has a plate area of 0.2 m² and a plate separation of 0.1 mm. To obtain an electric field of 2.0 $\times$ 10⁶ V/m between the plates, the magnitude of the charge on each plate should be:

3.5 $\times$ $10^{-6}$ C

7.1 $\times$ $10^{-6}$ C

1.4 $\times10^{-6}$ C

1.8 $\times10^{-6}$ C

18.

If both the plate area and the plate separation of a parallel-plate capacitor are doubled, the capacitance is:

doubled

halved

unchanged

one-fourth the original

19.

If a p.d of 5V is across the combination, what is the total energy stored by the combination?

68.8J

1.71x10^-3J

8.59x10^-4J

4.00x10^-3J

20.

An uncharged capacitor is connected to a battery.

21.

An uncharged capacitor is connected to a battery.

22.

A capacitor of capacitance C has a potential difference V across it and stores energy Z joules. A second capacitor has a capacitance of C/2 and a potential difference of 2V across it. What is the energy stored on the second capacitor?

100 %

Capacitor Quiz Ullens

Total questions: 22

Worksheet time: 15mins

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