Download Electrical Circuits:

Electrical Circuits:
Ohm’s Law
1. A _________ circuit only has one path for current flow.
a. parallel
b. series
c. series-parallel
d. parallel-series
2. A(n) _________ circuit has more than one path or leg for current flow.
a. series
b. parallel
c. parallel-series
d. electronic
3. The _________ leg refers to the section of the circuit that carries current to a load.
a. ground
b. negative
c. hot
d. parallel
4. The _________ leg is the circuit that returns current to the source of voltage.
a. ground
b. positive
c. hot
d. parallel
5. Which of these circuits uses the metal structure of a chassis as a conductor?
a. parallel
b. series
c. frame-ground
d. series-parallel
6. The most basic rule in electricity is that _________ follow(s) the path of least
resistance.
a. ohms
b. wattage
c. voltage
d. current
7. Ohm's Law is a simple formula used to express the relationship between voltage,
current, and
_________.
a. amps
b. resistance
c. electrons
d. wattage
8. Which of these statements is true concerning a series circuit?
a. Current is the same everywhere in the circuit.
b. Total ohms is the sum of all resistance.
c. Voltage drop across the loads equals the voltage applied.
d. All of the above.
9. Which of these statements is true concerning a parallel circuit?
a. Total current is the sum of all branches.
b. Total circuit resistance is more than any one branch.
c. Resistance applied to each branch is the same.
d. All of the above.
10. According to Ohm's Law, current equals voltage _________ by resistance.
a. multiplied
b. subtracted
c. divided
d. none of the above
11. According to Ohm's Law, which of the following statements is true?
a. Voltage equals current divided by resistance.
b. Voltage equals resistance subtracted by current.
c. Voltage equals current times resistance.
d. None of the above.
12. If there are two four-ohm resistances in a twelve volt series circuit, what is the
approximate
current flow in this circuit?
a. 3.4 amps
b. 1.5 amps
c. 5.3 amps
d. 2.5 amps
13. If there are three four-ohm resistances in a two amp series circuit, what is the amount
of voltage applied to this circuit?
a. 12 volts
b. 6 volts
c. 24 volts
d. 3 volts
14. If a parallel circuit has three branches carrying four amps each, what would the total
circuit current value be?
a. 8 amps
b. 6 amps
c. 4 amps
d. 12 amps
15. What is the total resistance in a parallel circuit in which R-1 equals 4 ohms and R-2
equals 6 ohms?
a. 2.4 ohms
b. 6.0 ohms
c. 3.5 ohms
d. 8.0 ohms