Lesson C Quiz
Intro To Basic Electricity



Review Questions


1. What does resistance do in an electric circuit?

A. It stores energy in a magnetic field
B. It stores energy in an electric field
C. It provides electrons by a chemical reaction
D. It opposes the flow of electrons


2. What is one reason resistors are used in electronic circuits?

A. To block the flow of direct current while allowing alternating current to pass
B. To block the flow of alternating current while allowing direct current to pass
C. To increase the voltage of the circuit
D. To control the amount of current that flows for a particular applied voltage


3. What is the basic unit of resistance?

A. The farad
B. The watt
C. The ohm
D. The resistor


4. What is the definition of 1 ohm?

A. The reactance of a circuit in which a 1-microfarad capacitor is resonant at 1 MHz
B. The resistance of a circuit in which a 1-amp current flows when 1 volt is applied
C. The resistance of a circuit in which a 1-milliamp current flows when 1 volt is applied
D. The reactance of a circuit in which a 1-millihenry inductor is resonant at 1 MHz


5. What is the ability to store energy in a magnetic field called?

A. Admittance
B. Capacitance
C. Resistance
D. Inductance


6. What is the basic unit of inductance?

A. The coulomb
B. The farad
C. The henry
D. The ohm


7. What is a henry?

A. The basic unit of admittance
B. The basic unit of capacitance
C. The basic unit of inductance
D. The basic unit of resistance


8. What is one reason inductors are used in electronic circuits?

A. To block the flow of direct current while allowing alternating current to pass
B. To reduce the flow of AC while allowing DC to pass freely
C. To change the time constant of the applied voltage
D. To change alternating current to direct current


9. What is the ability to store energy in an electric field called?

A. Inductance
B. Resistance
C. Tolerance
D. Capacitance


10. What is the basic unit of capacitance?

A. The farad
B. The ohm
C. The volt
D. The henry


11. What is a farad?

A. The basic unit of resistance
B. The basic unit of capacitance
C. The basic unit of inductance
D. The basic unit of admittance


12. What is one reason capacitors are used in electronic circuits?

A. To block the flow of direct current while allowing alternating current to pass
B. To block the flow of alternating current while allowing direct current to pass
C. To change the time constant of the applied voltage
D. To change alternating current to direct current


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