Introduction to Electronics Final Exam
Questions And Answers.
AC and DC current - Answer What are the 2 types of electrical current?
Volt - Answer unit of measurement for Voltage
Ampere - Answer unit of measurement for Current
Ohms - Answer unit of measurement for Resistance and Impedance
Watts - Answer unit of measurement for Wattage
1200 Watts - Answer If a circuit has 120 volts creating 10 amps of current, how many watts
will result?
True - Answer True or False:
Increasing the voltage will make more current flow.
Current, Voltage, Resistance - Answer What are the three most basic units in electricity?
120 volt, 60 cycle AC - Answer What kind of electrical power comes from a wall socket in the
United States?
0.03 amps - Answer Using ohm's law:
If a 9 volt battery is connected to a 300 ohm load, how much current will flow?
Voltage, Current, Resistance - Answer Ohm's law defines the relationship between which 3
electrical properties?
movement of electrons - Answer Define current:
material that allows for easy flow of electrons - Answer What is a conductor?
Amplitude and Frequency - Answer What are the 2 basic characteristics of a sound wave?
, Amplitude - Answer Increasing the voltage in an analog electrical circuit will increase what
aspect of the resulting sound wave?
Sine - Answer Which of the simple waveforms contains only the fundamental frequency and
has no harmonic content?
Sawtooth - Answer Which of the simple waveforms contains every harmonic in the series?
Speakers - Answer Which kinds of devices put out the highest level of signal?
1.2 volts - Answer What voltage measurement should you expect from a line level output?
Mic Level - Answer What is another name for Low Level analog signal?
Line Level - Answer What is another name for Medium Level analog signal?
Speaker Level - Answer What is another name for High Level analog signal?
False - Answer True or False:
A parallel circuit contains all components connected end-to-end to form only one path for
electrons to flow through the circuit.
All components share equal current - Answer How does current operate in a series circuit?
24 Ω - Answer What is the Total Impedance (Ω) if an amplifier has three 8Ω speakers wired
to it in series?
Wattage increases - Answer What happens to the wattage of an amplifier if the total ohm
load (Ω) is decreased?
false - Answer True or False:
Doubling the wattage of an amplifier will increase the output by +6 dB.
true - Answer True or False:
Doubling the wattage of an amplifier will increase the output by +3 dB.
Questions And Answers.
AC and DC current - Answer What are the 2 types of electrical current?
Volt - Answer unit of measurement for Voltage
Ampere - Answer unit of measurement for Current
Ohms - Answer unit of measurement for Resistance and Impedance
Watts - Answer unit of measurement for Wattage
1200 Watts - Answer If a circuit has 120 volts creating 10 amps of current, how many watts
will result?
True - Answer True or False:
Increasing the voltage will make more current flow.
Current, Voltage, Resistance - Answer What are the three most basic units in electricity?
120 volt, 60 cycle AC - Answer What kind of electrical power comes from a wall socket in the
United States?
0.03 amps - Answer Using ohm's law:
If a 9 volt battery is connected to a 300 ohm load, how much current will flow?
Voltage, Current, Resistance - Answer Ohm's law defines the relationship between which 3
electrical properties?
movement of electrons - Answer Define current:
material that allows for easy flow of electrons - Answer What is a conductor?
Amplitude and Frequency - Answer What are the 2 basic characteristics of a sound wave?
, Amplitude - Answer Increasing the voltage in an analog electrical circuit will increase what
aspect of the resulting sound wave?
Sine - Answer Which of the simple waveforms contains only the fundamental frequency and
has no harmonic content?
Sawtooth - Answer Which of the simple waveforms contains every harmonic in the series?
Speakers - Answer Which kinds of devices put out the highest level of signal?
1.2 volts - Answer What voltage measurement should you expect from a line level output?
Mic Level - Answer What is another name for Low Level analog signal?
Line Level - Answer What is another name for Medium Level analog signal?
Speaker Level - Answer What is another name for High Level analog signal?
False - Answer True or False:
A parallel circuit contains all components connected end-to-end to form only one path for
electrons to flow through the circuit.
All components share equal current - Answer How does current operate in a series circuit?
24 Ω - Answer What is the Total Impedance (Ω) if an amplifier has three 8Ω speakers wired
to it in series?
Wattage increases - Answer What happens to the wattage of an amplifier if the total ohm
load (Ω) is decreased?
false - Answer True or False:
Doubling the wattage of an amplifier will increase the output by +6 dB.
true - Answer True or False:
Doubling the wattage of an amplifier will increase the output by +3 dB.
