Font size
WorksheetsAP Physics LC Circuits
Total questions: 24
Worksheet time: 52mins
Five wires are made of the same material. Which wire would give the least resistance?
A
B
C
D
E
A variable resistor is one that can change resistance, like a dimmer switch. As the resistance increases, which graph best shows the current through the lamp?
a
b
c
d
Compared to a 3-Ohm resistor, a 6-Ohm resistor has
1/4 the power
1/2 the power
2 times the power
4 times the power
Which circuit has the largest power rating?
a
b
c
d
e
An electrical circuit is connected to a motor that puts out work for 6 seconds. What is the power of the motor?
9600 Watts
4800 Watts
267 Watts
229 Watts
The area under the curve of this graph best represents
power
energy
time
current
Which two resistors must have the same current? Select two.
1-Ohm
2-Ohm
3-Ohm
4-Ohm
6-Ohm
Which two resistors must have the same voltage? Select two.
12-Ohm
6-Ohm
4-Ohm
3-Ohm
1-Ohm
Which is true?
I1 + I2 = I3
I2 + I3 = I1
I3 + I1 = I2
I1 = I2 = I3
What is the reading on the ammeter in this circuit?
need to know resistances to determine
7 A
5 A
3 A
Which ammeter will have the greatest reading?
A1
A2
A3
A4
Which resistor will have the greatest electrical potential difference?
20-Ohm
30-Ohm
40-Ohm
all the same
What is the voltage drop across the third resistor?
1 V
6 V
9 V
15 V
All of the following are true EXCEPT
18 = 3 I2 + 6 I1
45 = 6 I1 + 2 I3
27 = -3 I2 + 3 I3
27 = 3 I2 + 3 I3
If the switch is closed, bulb A becomes
brighter
dimmer
turns off
short circuits
Closing which switch causes a short circuit?
A
B
C
More than one must be closed to short circuit
Which combination will yield the smallest equivalent resistance?
S1 and S2 closed
S1 and S2 open
S1 open and S2 closed
S1 closed and S2 open
Which of the following resistances cannot be produced with three 9-Ohm resistors?
3-Ohms
6-Ohms
13.5-Ohms
27-Ohms
all of these are possible resistances
The equivalent capacitance of this circuit is
greater than C1
equal to C1
less than C1
depends on the ratio of C1 to C2
In this picture, the multimeter could be measuring
current only
voltage only
resistance only
either voltage or resistance
The multimeter could be measuring
current only
voltage only
resistance only
either voltage or resistance
The multimeter could be measuring
current only
voltage only
resistance only
either voltage or resistance
A 9 V battery is connected to a 3 V , 15 mA LED and adjustable resistor. Does this design satisfy the requirements?
Yes, at one value of resistance, this design works
Yes, at any value of resistance, this design works
No, at no value of resistance will this work
More information is needed
A 9 V battery is connected to a 3 V , 15 mA LED and adjustable resistor. Does this design satisfy the requirements?
Yes, at one value of resistance, this design works
Yes, at any value of resistance, this design works
No, at no value of resistance will this work
More information is needed
