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Question: Between two objects, the development of static charges creates a:
Choices:
a. potential difference
b. battery
c. thermocouple
d. resistance
Correct Answer: a. potential difference
Question: A coil of wire that carries an electric current is called a:
Choices:
a. conductor
b. thermocouple
c. electrocurrent
d. electromagnet
Correct Answer: d. electromagnet
Question: Metals are good conductors because they have many:
Choices:
a. insulators
b. free electrons
c. resistors
d. inductors
Correct Answer: b. free electrons
Question: The amount of potential difference a layer of insulation can withstand without breaking down is:
Choices:
a. resistance
b. voltage drop
c. dielectric strength
d. ampacity
Correct Answer: c. dielectric strength
Question: What is the property of a coil of wire that opposes any change in the current in the coil?
Choices:
a. Inductance
b. Resistance
c. Impedance
d. Watts
Correct Answer: a. Inductance
Question: What is the correct name for "voltage" or electromotive force?
Choices:
a. Element
b. Electron
c. Circuit
d. Potential difference
Correct Answer: d. Potential difference
Question: A rate of flow of one coulomb per second is called one:
Choices:
a. ampere
b. joule
c. volt
d. olhum
Correct Answer: a. ampere
Question: What is the name for the proportional relationship between potential difference and current?
Choices:
a. Voltage drop
b. Voltmeter
c. Ampmeter
d. Watt meter
Correct Answer: b. Voltmeter
Question: What is the unit of measurement for capacitive reactance?
Choices:
a. Volts
b. Ohms
c. Amps
d. Power factor
Correct Answer: b. Ohms
Question: Power companies use AC generators because AC can be sent over long distances:
Choices:
a. at high cost
b. at low cost
c. slower
d. faster
Correct Answer: b. at low cost
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