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WorksheetsOhm’s Law in Series Circuits – Multiple Choice Questions
Total questions: 15
Worksheet time: 8mins
What is the current in a series circuit with a total resistance of 10 Ω and a voltage supply of 20 V?
2 A
0.5 A
10 A
30 A
If the total voltage is 12 V and the current is 3 A, what is the total resistance?
36 Ω
4 Ω
9 Ω
15 Ω
What is the voltage across a 5 Ω resistor if the current is 2 A?
2.5 V
10 V
5 V
1 V
Three resistors in series (2 Ω, 3 Ω, and 5 Ω) are connected to a 10 V supply. What is the total current?
2 A
1 A
0.5 A
0.8 A
If current in a series circuit is 0.5 A and the resistance is 8 Ω, what is the voltage?
(a)
A 9 V battery powers a series circuit with 3 resistors: 1 Ω, 2 Ω, and 4 Ω. What is the total current?
1.3 A
3 A
0.5 A
2 A
What happens to the current in a series circuit if the resistance increases?
It increases
It decreases
It stays the same
It becomes infinite
If the total current is 2 A and one resistor is 6 Ω, what is the voltage drop across it?
12 V
3 V
1 V
8 V
Which of the following is Ohm’s Law?
I = R × V
R = V × I
V = I × R
V = R ÷ I
In a series circuit with a total resistance of 15 Ω and a current of 0.2 A, what is the total voltage?
3 V
1.5 V
30 V
15 V
If a 3 Ω and a 6 Ω resistor are in series with a 9 V battery, what is the current?
1 A
2 A
0.5 A
3 A
You have a 12 V battery and three 2 Ω resistors in series. What's the current?
3 A
2 A
1 A
0.5 A
A current of 0.25 A flows through a 20 Ω resistor. What is the voltage across it?
5 V
10 V
2.5 V
20 V
Three resistors in series have a total resistance of 18 Ω. The circuit has 9 V applied. What is the current?
0.25 A
2 A
0.5 A
1 A
In a series circuit, which of the following statements is TRUE?
Voltage is the same across each resistor
Current is different across each resistor
Total resistance is the sum of all resistors
Resistance decreases as more resistors are added
