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 10
A circuit contains three bulbs connected in parallel. If one bulb burns out, what happens to the other bulbs?
Describe the main difference between the way current flows in a series circuit and a parallel circuit.
Explain what happens to the brightness of bulbs in a series circuit if more bulbs are added.
Explain why household electrical wiring is done in parallel and not in series.
In a parallel circuit, if more branches are added, what happens to the total resistance?
A 24 V battery is connected to four resistors of 8 Ω each in parallel. What is the total current supplied by the battery?
A 9 V battery is connected to three resistors of 3 Ω each in parallel. What is the voltage across each resistor?
A 9 V battery is connected to three resistors of 3 Ω each in series. What is the voltage drop across each resistor?
A circuit has two resistors, R₁ = 4 Ω and R₂ = 12 Ω, connected in parallel. What is the total resistance?
Which formula is used to calculate the total resistance (R_total) of two resistors R₁ and R₂ in parallel? (1) R_total = R₁ + R₂ (2) R_total = (R₁ × R₂) / (R₁ + R₂) (3) R_total = R₁ - R₂ (4) R_total = R₁ × R₂
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 is the sum of all resistances. (4) Removing one branch increases the total current.
Which of the following is NOT a property of a series circuit? (1) The current is the same at all points. (2) The total resistance increases as more resistors are added. (3) The voltage across each resistor is the same. (4) Removing one resistor breaks the circuit.
Which of the following statements is true about a series circuit? (1) The current is the same through all components. (2) The voltage is the same across all components. (3) The total resistance is less than the smallest resistor. (4) Removing one component does not affect the rest.
Fill in the blank: In a ______ circuit, the current splits and flows through multiple paths.
In a parallel circuit, the total current is equal to the ______ of the currents through each branch.
In a series circuit, the sum of the potential differences across each component is equal to the ______ supplied by the source.
True or False: In a parallel circuit, the failure of one branch affects the operation of the other branches.
True or False: In a parallel circuit, the total resistance is always less than the resistance of the smallest resistor.
True or False: In a series circuit, if one component fails, the entire circuit stops working.
True or False: The total voltage across a parallel circuit is equal to the voltage across each branch.
