Free Printable Homework: Chapter Capacitors

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Homework: Chapter Capacitors

Total questions: 20

Worksheet time: 23mins

Name

Class

Date

The figure to the right represents:

Capacitor

Diode

Inductor

Resistor

With respect to the capacitor, which relationship is true?

C = Q/V

V = C×Q

Q = C/V

Q = V/C

What is the voltage across the plates of the capacitor if the capacitance is 10 uF and the Charge stored is 30 uC?

0.333 V

3 V

300 V

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

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

If 4μF and 2μF capacitors are conneced in series, the equivalent capacitor is ___________.

1.33μF

0.75μF

6μF

2μF

If capacitors are connected in parallel, then potential difference across each capacitor is

same

zero

different

infinite

When a 4 V battery is connected to a capacitor, what is the voltage across the capacitor after a long period of time?

0.0 V

2.0 V

4.0 V

3.0 V

The dielectric constant is the:

resistivity

relative permittivity

conductivity

permeability

10.

----------------- is permittivity of a given material relative to that of the permittivity of a vacuum.

Permittivity

Static permittivity

Absolute permittivity

Relative permittivity

11.

The symbol for the relative permittivity is:

ε_r

ε₀

ε_s

ε_v

12.

The symbol for the absolute permittivity is:

ε_r

ε₀

ε_s

ε_v

13.

If C= 470μF, V=3V, then

1.71mC

1.51mC

1.61mC

1.41mC

14.

In the capacitor, greater plate area gives:

greater capacitance

less capacitance

no change

15.

If 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/A

C = A/ϵd

C = ϵA/d

C = d/ϵA

16.

The capacitance of a parallel-plate capacitor can be increased by:

increasing the charge

decreasing the charge

increasing the plate separation

decreasing the plate separation

17.

Capacitor C₁ and C₂ are connected in parallel. The equivalent capacitance is given by:

C₁ + C₂

1/(C₁ + C₂)

C₁C₂/(C₁ + C₂)

(C₁ + C₂)/C₁C₂

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.

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 x 10⁶ V/m between the plates, the magnitude of the charge on each plate should be:

3.5 x 10^-6C

7.1 x 10^-6C

1.4 x 10^-5C

1.8 x 10^-5C

20.

If the capacitance is 47μF, and the voltage difference across the capacitor terminals is 6V, then the energy stored in that capacitor is:

846×10^-6Joule

7.23×10^-3 Joule

6.76×10^-5Joule

5.94×10^-2Joule

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Homework: Chapter Capacitors

Total questions: 20

Worksheet time: 23mins

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