NEW
Font size
S
M
L
XL
WorksheetsOhms law
Total questions: 20
Worksheet time: 47mins
Name
Class
Date
1.
What unit is used to measure current?
a)
Ohms
b)
Omega
c)
Volts
d)
Amps
2.
What unit is used to measure resistance?
a)
Ohms
b)
Omega
c)
Volts
d)
Amps
3.
What is the current in a circuit with 6 ohms of resistance and a battery containing 24 Volts?
a)
1/4 A
b)
144 A
c)
4 A
d)
0.4 A
4.
What is the resistance of a lightbulb that experiences 9 Volts and 3 amps of current?
a)
1/3 ohms
b)
3 ohms
c)
27 ohms
d)
9 ohms
5.
What is the voltage of a circuit with 4 ohms of resistance and 3 amps of current?
a)
12 V
b)
21 V
c)
4/3 V
d)
3/4 V
6.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
7.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
8.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
9.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
10.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
11.
What is the formula for ohms law?
a)
1+2=3
b)
R X E = I
c)
V =I x R
d)
E= MC squared
12.
How do you calculate voltage?
a)
Current X Resistance
b)
Resistance ÷ Current
c)
Current ÷ Resistance
d)
Measure it with a ruler
13.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
14.
What resistance is needed to cause a 50A current flow because of a 500V battery?
a)
10Ώ
b)
5Ώ
c)
2500Ώ
d)
550Ώ
15.
With the engine running the charging system produces 14.5 Volts what would the current flow be if a resistance of 6 Ohms was present
a)
2.41 Ohms
b)
2.52 Ohms
c)
2.1 Ohms
d)
0.3333 Ohms
16.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
17.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
d)
It depends
18.
The flow of electricity requires a
a)
complete path
b)
incomplete path
c)
insulated current
d)
complex circuit
19.
What is this symbol?
a)
resistor
b)
switch
c)
battery
d)
bulb
20.
This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?
a)
3 Amps
b)
192 Amps
c)
2 Amps
d)
4 Amps
Reset
