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 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?
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?
In a parallel circuit, if one branch is disconnected, what happens to the current in the other branches?
What happens to the total resistance when more resistors are added in parallel?
Which type of circuit is more suitable for wiring the lights in a classroom?
A circuit consists of a 24 V battery connected to three resistors: 4 Ω and 8 Ω in series, and a 12 Ω resistor in parallel with the 8 Ω resistor. Calculate the total resistance of the circuit.
A circuit contains a 5 Ω resistor and a 10 Ω resistor connected in series to a 15 V battery. What is the power dissipated by the 10 Ω resistor?
A parallel circuit has three branches, each with a resistor of 6 Ω. If the total current from the battery is 3 A, what is the current through each branch?
A student builds a circuit with a 9 V battery and three resistors: 2 Ω and 4 Ω in series, and a 6 Ω resistor in parallel with the 4 Ω resistor. What is the current supplied by the battery?
Explain why adding more branches to a parallel circuit decreases the total resistance of the circuit.
If the total resistance in a parallel circuit is 2 Ω and there are only two resistors, one of which is 4 Ω, what is the value of the second resistor?
