Series and Parallel Circuits
Physics ⇒ Electricity and Magnetism
Series and Parallel Circuits starts at 8 and continues till grade 12.
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See sample questions for grade 9
A 10 Ω resistor and a 20 Ω resistor are connected in parallel. What is the total resistance?
A 12 V battery is connected to two resistors in parallel: 6 Ω and 3 Ω. What is the voltage across the 6 Ω resistor?
A 24 V battery is connected to four 6 Ω resistors in series. What is the current in the circuit?
A 24 V battery is connected to two resistors in parallel: 8 Ω and 12 Ω. What is the total resistance?
A 9 V battery is connected to a series circuit with two resistors: 3 Ω and 6 Ω. What is the voltage drop across the 6 Ω resistor?
A circuit contains two resistors, R₁ = 5 Ω and R₂ = 10 Ω, connected in series. What is the total resistance?
A circuit has three resistors in parallel: 12 Ω, 6 Ω, and 4 Ω. Calculate the total resistance.
A circuit has three resistors in series: 1 Ω, 2 Ω, and 3 Ω. What is the total resistance?
A parallel circuit has two branches: one with a 2 Ω resistor and one with a 4 Ω resistor. If the voltage across the circuit is 8 V, what is the current through the 2 Ω resistor?
A student connects three identical bulbs in series to a battery. What happens to the brightness of each bulb compared to a single bulb connected to the same battery?
Calculate the total resistance of three resistors of 2 Ω, 4 Ω, and 6 Ω connected in series.
Describe one advantage of using parallel circuits in home lighting systems.
Describe the main difference between series and parallel circuits.
Describe what happens to the total resistance if you add another resistor in series to a circuit.
Explain why household appliances are not connected in series.
Explain why the total resistance in a parallel circuit is always less than the smallest individual resistance.
If a 12 V battery is connected to a parallel circuit with two 12 Ω resistors, what is the total current supplied by the battery?
If a 9 V battery is connected to three resistors in series (2 Ω, 3 Ω, and 4 Ω), what is the current in the circuit?
If the total resistance in a series circuit is 18 Ω and there are three identical resistors, what is the resistance of each resistor?
If three resistors of 6 Ω, 3 Ω, and 2 Ω are connected in parallel, what is the total resistance?
