# Physics: Resistors in Series and Parallel

## Test Quiz

Questions on this quiz are based on information from
Physics: Resistors in Series and Parallel.

1. What is the total resistance of a circuit called?
a. Absolute resistance
b. Equivalent resistance
c. Comprehensive resistance
d. Unlimited resistance
e. Inclusive resistance

2. Which of the following best describes resistors connected in parallel?
a. Resistors connected end-to-end
b. Resistors that connect to capacitors
c. Resistors that aren't in the same circuit
d. Resistors connected across from one another
e. None of the Above

3. Which of the following best describes resistors connected in series?
a. Resistors connected end-to-end
b. Resistors that connect to capacitors
c. Resistors that aren't in the same circuit
d. Resistors connected across from one another
e. None of the Above

4. What formula would be used to calculate the equivalent resistance if R1 and R2 were connected in series?
a. R = R1 * R2
b. R = 1/R1 + 1/R2
c. 1/R = 1/R1 + 1/R2
d. R = R1/R2
e. R = R1 + R2

5. What formula would be used to calculate the equivalent resistance if R1 and R2 were connected in parallel?
a. R = R1 * R2
b. R = 1/R1 + 1/R2
c. 1/R = 1/R1 + 1/R2
d. R = R1/R2
e. R = R1 + R2

6. What is the equivalent resistance of two 10 ohm resistors in series?
a. 5 Ohms
b. 10 Ohms
c. 20 Ohms
d. 30 Ohms
e. 50 Ohms

7. What is the equivalent resistance of two 10 ohm resistors in parallel?
a. 5 Ohms
b. 10 Ohms
c. 20 Ohms
d. 30 Ohms
e. 50 Ohms

8. What is the equivalent resistance of three 30 ohm resistors in series?
a. 3 Ohms
b. 10 Ohms
c. 40 Ohms
d. 60 Ohms
e. 90 Ohms

9. What is the equivalent resistance of three 30 ohm resistors in parallel?
a. 3 Ohms
b. 10 Ohms
c. 40 Ohms
d. 60 Ohms
e. 90 Ohms

10. When you have a circuit with both series and parallel resistors, what do you do first when calculating the equivalent resistance?
a. The series resistors
b. The parallel resistors
c. It doesn't matter which you do first
d.
e.

About this quiz: All the questions on this quiz are based on information that can be found on the Physics: Resistors in Series and Parallel page at www.ducksters.com/science/physics/resistors_in_series_and_parallel.php.