Free Printable Electrostatics & Circuits Review

Worksheets

Electrostatics & Circuits Review

Total questions: 32

Worksheet time: 52mins

Name

Class

Date

Which of the following is true about a parallel circuit?

Voltage is split between the branches of a parallel circuit.

If one part of a parallel circuit goes out, the entire circuit goes out.

Current splits in a parallel circuit.

Resistance is higher in a parallel circuit.

A 12 V battery is connected to three 4 ohm resistors in series. What is the total current flowing through the circuit?

1 ampere

3 amperes

48 amperes

144 amperes

If the voltage supply for this circuit is 5 V, what is the power output of the circuit?

0.25 W

0.83 W

0.4 W

30 W

The current supplied by a battery is 0.17 amps. What would the voltage drop be across a 20 ohm resistor?

1.7 V

3.4 V

5 V

30 V

One light in the library goes out, and the entire school goes out. This would prove that the school is wired in...

series

parallel

reverse

separate circuits

In a series circuit with two resistors, which of the following does not change?

Resistance

Voltage

Current

Power

In a parallel circuit with two resistors, which of the following is the same?

Current

Resistance

Voltage

Power

Electrostatic force F exists between two point charges. If the both charges are doubled, the force between the charges will be

F/4

Which of the following is a false statement about electrostatic force.

Bringing charges closer together strengthen the force.

The electrostatic constant remains the same.

The values of the two charges is always the same.

Electrostatic force can be attractive or repulsive

10.

An electrostatic force of magnitude F exists between two metal spheres having identical charge q. The distance between their centers is r. Which combination of changes would produce no change in the electrostatic force between the spheres?

doubling q on both spheres while halving r

doubling q on one sphere while halving r

doubling q on one sphere while doubling r

doubling q on both spheres while doubling r

11.

Two similar metal spheres, A and B, have charges of +2.0 x 10^-6 coulomb and +1.0 x 10^-6 coulomb, respectively. The magnitude of the electrostatic force on A due to B is 4.0N newtons. What is the magnitude of the electrostatic force on B due to A?

2.0N

4.0N

8.0N

1.0N

12.

Two like charges

neutralize each other.

repel each other.

must be neutrons.

attract each other.

13.

What is the total current in this circuit?

0.32 A

456 A

0.6 A

1.09 A

1.71 A

14.

Which circuit has the smallest equivalent resistance? All resistors have a resistance of 4 ohms.

15.

Which parallel resistors have the greater equivalent resistance?

16.

If the voltage across the battery was 10 V, how much voltage does each bulb get?

10 V

5 V

20 V

0 V

17.

If both resistors R₁ and R₂ are identical and have a resistance of 4 Ω, and the battery provides 12 V, then the total current coming from the battery is

6 A

1.5 A

24 A

3 A

18.

This is an example of a _______ circuit

open

series

parallel

square

19.

This is an example of a ______ circuit

Series

Parallel

Open

Dihexihedral

20.

Will the light bulb in this circuit light and why/why not?

yes, because it has two batteries

no, because the switch is open

yes, because it is in a circuit

no, because the bulb is burned out

21.

What will happen if one light bulb is removed from this circuit?

the other bulbs will go out

the other bulbs will get dimmer

the other bulbs will get brighter

the battery will become stronger

22.

Which lights would turn on if your closed switches 1 and 2?

red, blue, and white

red and white

red and blue

blue, white, yellow

23.

The total current through this circuit is

0.02 amps

0.09 amps

50 amps

9 amps

24.

The voltage dropped across the 300 ohm resistor is

6 V

9 V

2 V

30 V

25.

As the resistance of a circuit increases, the current will...

increase

decrease

stay the same

26.

The current going through the 45 ohm resistor is

0.05 amps

0.2 amps

0.1 amps

5 amps

27.

The total resistance of this circuit is

25.7 ohms

315 ohms

324 ohms

90 ohms

28.

A lamp plugged into a standard american outlet (120 V) uses 0.8 A of current. What is the power in the circuit?

0.007 W

96 W

120 W

150 W

29.

If all of the switches were closed, how many paths can the current take?

30.

If switch 3 and 6 were open, which device(s) would turn on?

none

A, B, C

A, C, C, E, F

all of them

31.

What is current?

the amount of push the electrical source supplies to the circuit

how much a given device resists the flow of electric current

flow of electric charge

none of the above

32.

What is resistance?