An alarm clock draws 0.5 A of current when connected to a 120 volt circuit. Calculate its resistance.
Electric Current and Ohm's Law

Quiz
•
Science
•
9th Grade
•
Hard
Lisa Thompson
FREE Resource
15 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
60Ω
120Ω
180Ω
240Ω
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Speakers need a household voltage of 110 V to push a current of 5.5 A through them. What is the resistance of the speakers?
10Ω
20Ω
30Ω
40Ω
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
An IPod uses a standard 1.5 V battery. How much resistance is in the circuit if it uses a current of 0.01A?
50Ω
100Ω
150Ω
200Ω
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A circuit contains a 1.5 volt battery and a bulb with a resistance of 3 ohms. Calculate the current.
0.5A
1A
1.5A
2A
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What current flows through a hair dryer plugged into a 120 Volt circuit if it has a resistance of 25 ohms?
2.4A
3.6A
4.8A
6A
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the
circuit?
5A
10A
15A
20A
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
A 12 Volt car battery pushes charge through the headlight circuit resistance of 10 ohms. How much current
is passing through the circuit?
1A
1.2A
1.4A
1.6A
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