Series and Parallel Circuits
Physics ⇒ Electricity and Magnetism
Series and Parallel Circuits starts at 8 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Series and Parallel Circuits.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 8
A student builds a circuit with two bulbs in series and measures the brightness. She then builds a parallel circuit with the same bulbs. Which circuit will have brighter bulbs?
A student connects two bulbs in series to a battery. If one bulb burns out, what happens to the other bulb?
Describe one advantage and one disadvantage of using a series circuit.
Describe the main difference between a series and a parallel circuit.
A 12 V battery is connected to two resistors in parallel: 3 Ω and 6 Ω. What is the current through the 3 Ω resistor?
A 12 V battery is connected to two resistors in series: 2 Ω and 4 Ω. What is the voltage drop across the 4 Ω resistor?
A 6 V battery is connected to two resistors in parallel: 2 Ω and 3 Ω. What is the total current supplied by the battery? (Round to two decimal places.)
A 9 V battery is connected to three resistors in series: 1 Ω, 2 Ω, and 3 Ω. What is the current in the circuit?
In a series circuit, if the resistance increases, what happens to the current? (1) It increases (2) It decreases (3) It stays the same (4) It becomes zero
Which circuit arrangement allows each device to operate independently? (1) Series (2) Parallel (3) Both (4) Neither
Which of the following best describes the current in a series circuit? (1) It splits at each component. (2) It is the same through all components. (3) It is zero. (4) It increases at each component.
Which of the following is a characteristic of a parallel circuit? (1) The current is the same through all branches. (2) The voltage is the same across all branches. (3) The total resistance increases as more branches are added. (4) The circuit cannot be used for household wiring.
Fill in the blank: In a ______ circuit, the failure of one component does not affect the operation of the others.
In a parallel circuit, the total current is equal to the ______ of the currents through each branch.
In a parallel circuit, the voltage across each branch is equal to the voltage of the ______.
In a series circuit, the sum of the voltages across each component is equal to the ______ supplied by the source.
A parallel circuit has three branches. If one branch is disconnected, will the other branches still work?
If the total resistance in a parallel circuit is less than the smallest resistor, is this statement true or false?
The formula for total resistance (R_total) in a parallel circuit with two resistors R₁ and R₂ is: 1/R_total = 1/R₁ + 1/R₂. True or False?
True or False: Adding more branches in a parallel circuit increases the total resistance.
