line theory exam #1

1. List the three basic parts of a simple electrical circuit.

a.  Source

b.  Load 

c. path

2. Write Ohm’s Law solved for current.

I= E/R

3. Write Ohm’s Law solved for voltage.

E=IR 

4. Write Ohm’s Law solved for resistance.

R=E/I

5. If voltage stays the same and resistance increases, current will: 

a. Increase

b. Decrease

c. Stay the same

6. A circuit has 12 volts and 6 ohms. What is the current?

2 amps

7. A circuit has 24 volts and 4 amps. What is the resistance?

6 ohms

8. A series circuit has how many paths:

a. One path

b. Multiple paths

9. In a series circuit, what is the same through all components?

a. Voltage

b. Current

c. Resistance

10. True or False: Total resistance in a series circuit equals the sum of individual resistances.

True

11. True or False: In a capacitive circuit, current leads voltage.

True

12. True or False: In an inductive circuit, current lags voltage.

True

13. Reactance is measured in:

a. Volts

b. Amps

c. Ohms

14. The number of cycles per second is called:

hertz

15. Effective AC voltage is equal to peak voltage multiplied by:

Frequency