Free Printable Capacitor III

Worksheets

Capacitor III

Total questions: 15

Worksheet time: 26mins

Name

Class

Date

1. Which of the following statements DOES NOT describe a capacitor an electrical device?

A. It stores charge and electrical potential energy.

B. It is manufactured in many sizes and shapes.

C. It is used to smooth out unwanted fluctuations due to power surges in electronic circuits.

D. It allows current to pass through in any condition.

Two capacitors X and Y of capacitances 2 F and 4 F respectively are connected in series with

a 12 battery. Which of the following statements is CORRECT?

The effective capacitance is 6 F.

Capacitors have the same charge of 36 C.

The potential difference across the capacitor X is 8 V.

The potential difference across the capacitors Y is 12 V.

Three capacitors 1.0 $\mu$ F, 1.5 $\mu$ F and 2.0 $\mu$ F are connected in series. What is the equivalent
capacitance of the capacitors?

4.50 $\mu$ F

2.17 $\mu$ F

0.46 $\mu$ F

0.25 $\mu$ F

What is the potential difference across a capacitor on a 5 $\mu$ F when the charge of capacitor is
120 $\mu$ C?

21 V

22 V

23 V

24 V

Determine the equivalent capacitance in the circuit shown in FIGURE 17.4 when C = 1 pF.

$\frac{1}{8}pF$

$\frac{3}{8}pF$

$\frac{1}{4}pF$

$\frac{1}{2}pF$

Change Q on a capacitor varies with voltage V . The area of triangle OAB represents

Capacitance

Capacitive reactance

Magnetic field between the plates

Energy stored in the capacitor

Capacitance is measured in___________

Coulombs

Farads

Volts

In the capacitor, the dielectric can be made out of all sorts of ---------- materials and the plates are made of a -------------- material.

conductive, insulating

conductive, conductive

insulating, conductive

insulating, insulating

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

10.

Which of the following statements is false about electric field lines

electric field lines cannot cross

electric field lines point away from positive charge

electric field lines are always straight lines

electric field lines show how a proton would move in an electric field

11.

At which point is the electric field the strongest

12.

An electrostatic force of 2 X 10². newtons is exerted on a charge of 4 coulomb at point P in an electric field. The magnitude of the electric field intensity at P is

8 X 10² N/C

5 N/C

2 X 10^-2 N/C

50 N/C

13.

Which of the following is a true statement about the electric field between the two plates?

The field is attractive between the plates and uniform in strength

The field is repulsive between the plates and uniform in strength

The field is attractive between the plates and strongest near the positive

The field is repulsive between the plates and strongest near the positive

14.

ABC is an equilateral triangle. Charges +q are placed at each corner. The electric intensity at O will be

$Kc\left(\frac{q}{r^2}\right)$

$Kc\left(\frac{q}{r^{ }}\right)$

$Kc\left(\frac{3q}{r^2}\right)$

zero

15.

Two plates are 2cm apart, a potential difference of 10 V is applied between them, the electric field between the plates is

20 N/C

500 N/C

5 N/C

250 N/C

Reset

Capacitor III

Total questions: 15

Worksheet time: 26mins

Similar Resources on Wayground