N5B01 What is the name for the flow of electrons in an electric circuit?
- A. Voltage
- B. Resistance
- C. Capacitance
- D. Current
N5B02 What is the basic unit of electric current?
- A. The volt
- B. The watt
- C. The ampere
- D. The ohm
N5B03 Which instrument would you use to measure electric current?
- A. An ohmmeter
- B. A wavemeter
- C. A voltmeter
- D. An ammeter
N5B04 What is the name of the pressure that forces electrons to flow
through a circuit?
- A. Magnetomotive force, or inductance
- B. Electromotive force, or voltage
- C. Farad force, or capacitance
- D. Thermal force, or heat
N5B05 What is the basic unit of electromotive force (EMF)?
- A. The volt
- B. The watt
- C. The ampere
- D. The ohm
N5B06 How much voltage does an automobile battery usually supply?
- A. About 12 volts
- B. About 30 volts
- C. About 120 volts
- D. About 240 volts
N5B07 How much voltage does a wall outlet usually supply (in the US)?
- A. About 12 volts
- B. About 30 volts
- C. About 120 volts
- D. About 480 volts
N5B08 Which instrument would you use to measure electric potential or
electromotive force?
- A. An ammeter
- B. A voltmeter
- C. A wavemeter
- D. An ohmmeter
N5B09 What limits the current that flows through a circuit for a particular
applied DC voltage?
- A. Reliance
- B. Reactance
- C. Saturation
- D. Resistance
N5B10 What is the basic unit of resistance?
- A. The volt
- B. The watt
- C. The ampere
- D. The ohm
N5B11 Which instrument would you use to measure resistance?
- A. An ammeter
- B. A voltmeter
- C. An ohmmeter
- D. A wavemeter
N5B12 What are three good electrical conductors?
- A. Copper, gold, mica
- B. Gold, silver, wood
- C. Gold, silver, aluminum
- D. Copper, aluminum, paper
N5B13 What are four good electrical insulators?
- A. Glass, air, plastic, porcelain
- B. Glass, wood, copper, porcelain
- C. Paper, glass, air, aluminum
- D. Plastic, rubber, wood, carbon
N5B14 What does an electrical insulator do?
- A. It lets electricity flow through it in one direction
- B. It does not let electricity flow through it
- C. It lets electricity flow through it when light shines on it
- D. It lets electricity flow through it