Free Printable Capacitor revision

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Capacitor revision

Total questions: 10

Worksheet time: 4mins

Name

Class

Date

Which of the following best describes the unit of capacitance

Ohm (Ω)

Volt (V)

Watt (W)

Farad (F)

A capacitor is charged so that it stores a charge of 6 μC at a potential difference of 12 v. What is its capacitance?

2.5 μF

1.0 μF

0.2 μF

0.5 μF

Three capacitors of 4μF 6μF 12μF are connected in series. What is the total capacitance?

4μF

6μF

12μF

2μF

If two capacitors, each of10 μF, are connected in parallel, what is the total capacitance?

10 μF

30 μF

5 μF

20 μF

Which of the following statements about dielectric materials is correct?

Dielectric materials can be polarized by an electric field.

Dielectric materials conduct electricity easily.

Dielectric materials have no effect in an electric field.

Dielectric materials are always magnetic in nature.

What is the main function of a dielectric in a capacitor?

To store electrical energy without affecting capacitance.

To decrease the voltage across the capacitor.

To act as a conductor between the plates of the capacitor.

The main function of a dielectric in a capacitor is to increase its capacitance.

Which of the following is NOT a common application of capacitors?

Power generation

Signal filtering

Energy storage

Mechanical systems

A100 μF capacitor is connected to a12 V battery. How much charge is stored on the capacitor?

1200 μC

1800 μC

600 μC

2400 μC

Which equation correctly relates the charge Q, capacitance C, and voltage V for a capacitor?

Q = C * V

V = Q - C

C = Q + V

Q = V / C

10.

What happens to the total capacitance when more capacitors are added in parallel to a circuit?

The total capacitance becomes zero.

The total capacitance decreases.

The total capacitance remains the same.

The total capacitance increases.

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Capacitor revision

Total questions: 10

Worksheet time: 4mins

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