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 11
A 12 V battery is connected to two resistors, 3 Ω and 6 Ω, in parallel. What is the total current supplied by the battery?
A 24 V battery is connected to four resistors of 4 Ω each in series. What is the current in the circuit?
A 6 V battery is connected to two resistors, 2 Ω and 4 Ω, in series. What is the power dissipated in the 4 Ω resistor?
A circuit contains three resistors of 2 Ω, 4 Ω, and 6 Ω connected in series. What is the total resistance?
A circuit has two resistors, 10 Ω and 20 Ω, connected in series to a 30 V battery. What is the voltage drop across the 20 Ω resistor?
A parallel circuit has three branches, each with a resistor of 10 Ω. What is the total resistance?
A student connects three resistors of 5 Ω, 10 Ω, and 15 Ω in parallel. What is the total resistance?
Calculate the equivalent resistance of two resistors, 8 Ω and 12 Ω, connected in parallel.
Describe the main difference between series and parallel circuits in terms of current and voltage distribution.
Describe what happens to the total resistance of a series circuit if one resistor is removed.
Explain why household electrical appliances are connected in parallel rather than in series.
Explain why the total resistance decreases when more resistors are added in parallel.
If a 9 V battery is connected to a series circuit with three resistors of 1 Ω each, what is the current in the circuit?
If a parallel circuit has three branches with currents of 2 A, 3 A, and 5 A, what is the total current supplied by the source?
If the total current in a parallel circuit is 8 A and one branch carries 3 A, what is the total current in the other branches?
If the total resistance in a parallel circuit is 2 Ω and one branch has a resistance of 6 Ω, what is the resistance of the other branch?
If three identical bulbs are connected in parallel to a battery, and one bulb burns out, what happens to the brightness of the remaining bulbs?
State Ohm's Law and explain its application in series and parallel circuits.
The sum of the currents entering a junction in a parallel circuit is equal to the sum of the currents leaving the junction. This is an example of which law?
