Parallel circuit Quiz
easy
15 Questions
Question 1 of 15
In a parallel circuit, what is constant across all components?
Voltage is the same across all branches in a parallel circuit.
Question 2 of 15
What happens to the total current in a parallel circuit?
The total current is the sum of individual branch currents.
Question 3 of 15
If one branch of a parallel circuit opens, what happens to the other branches?
Branches operate independently in a parallel circuit.
Question 4 of 15
How is the total resistance calculated in a parallel circuit?
Reciprocal of total resistance equals the sum of reciprocals of individual resistances.
Question 5 of 15
What happens to the total resistance if more resistors are added in parallel?
Adding resistors in parallel lowers the total resistance.
Question 6 of 15
In a parallel circuit, which component has the highest current?
Current is inversely proportional to resistance (Ohm's Law).
Question 7 of 15
What is the equivalent resistance of two 10-ohm resistors connected in parallel?
For equal resistors in parallel, divide the resistance by the number of resistors.
Question 8 of 15
What is the relationship between power and current in a parallel circuit with fixed voltage?
Power (P) = V*I; voltage constant, thus power is proportional to current.
Question 9 of 15
If a parallel circuit has a voltage of 12V and a total current of 3A, what is the total resistance?
R = V/I (Ohm's Law), R = 12V / 3A = 4 ohms.
Question 10 of 15
What unit is used to measure current?
Current is measured in Amperes (A).
Question 11 of 15
What is the primary advantage of a parallel circuit?
Each branch operates independently, allowing for individual control.
Question 12 of 15
How does the total power compare to the sum of individual branch powers?
Total power dissipated is the sum of the power dissipated in each branch.
Question 13 of 15
Which of the following is NOT a characteristic of a parallel circuit?
Total resistance is always less than the smallest branch resistance.
Question 14 of 15
If three resistors (2?, 4?, and 8?) are connected in parallel, which resistor will have the most current flowing through it?
The resistor with the lowest resistance will have the highest current.
Question 15 of 15
In a parallel circuit, if the voltage is increased, what happens to the current in each branch?
By Ohm's Law, current is proportional to voltage in a parallel circuit with fixed resistance.
1 / 15