WorksheetsElectricity
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
1. An aluminum nail has an excess charge of +3.2 x 10-6 C. How many electrons must be added to the nail to make it electrically neutral?
a)
(A) 3.2 x 10-6 electrons
b)
2.0 x 1013 electrons
c)
.0 x 10-14 electrons
d)
(A) 2.0 x 1019 electrons
2.
1. What is the electric force on a -1.5 x 10-6 C charge at a point where the electric field strength is 3000 N/C and is directed along the +x axis.
a)
(A) 0.0045 N, -x direction
b)
(A) 0.0045 N, + y direction
c)
(A) 0.0030 N, + y direction
d)
(A) 0.015 N, + x direction
3.
A charge Q exerts a 10 N force on another charge q. If the distance between the charges is decreased to 1/3 the original separation distance, what is the magnitude of the force?
a)
30 N
b)
90 N
c)
48 N
d)
60 N
4.
1. An electron e and a proton p are simultaneously released from rest in a uniform electric field E, as shown above. Assume that the particles are sufficiently far apart so that the only force acting on each particle after it is released is that due to the electric field. The electron and the proton will have the same
a)
direction of motion
b)
magnitude of force acting
c)
magnitude of acceleration
d)
displacement
5.
1. At what separation will two charges, each of magnitude 1.3 x 10-6 C, exert a force of 0.10 N on each other?
a)
50 m
b)
0.48 m
c)
0.39 m
d)
483.7 m
6.
Which of the following statements concerning resistors in series is true?
a)
The voltage used by each resistor is the same.
b)
The rate at which charge flows through each resistor depends on its resistance.
c)
The current through each resistor is the same.
d)
The total current through the resistors is the sum of the current through each resistor.
7.
Three resistors, 50 ohms, 100 ohms, 200 ohms, are connected in series in a circuit. What is the equivalent resistance of this combination of resistors?
a)
350 ohms
b)
250 ohms
c)
29 ohms
d)
120 ohms
8.
Two 15 ohm resistors and three 25 ohm resistors are connected in series with a 24 V battery. What is the current through each resistor?
a)
0.23 A
b)
0.51 A
c)
1.6 A
d)
0.96 A
9.
Three resistors, 6.0 ohm, 9.0 ohm, 15 ohm, are connected in parallel in a circuit. What is the equivalent resistance of this combination of resistors?
a)
30 Ohms
b)
10 Ohms
c)
2.9 Ohms
d)
0.34 Ohms
10.
Which of the following is true about a parallel circuit?
a)
Current is the same through all resistors in parallel.
b)
Voltage used by each resistor is the same.
c)
Power dissipated by each resistor is the same.
d)
Voltage used by each resistor is dependent on the resistance of each.
11.
Three resistors, R1=3.0 ohm, R2=6.0 ohm, R3=9.0 ohm, are connected in parallel in a circuit with an 18 V battery. What is the current passing through each resistor?
a)
11 A
b)
6A through R1 and R2, and 2 A through R3.
c)
6 A through R1, 3 A through R2, and 2 A through R3.
d)
1.6 A
100 %
