Fundamentals of Electricity and
Electronics quick practice test 2025 with
correct verified answers
What are the three primary parameters of electricity? - CORRECT ANSWER-Voltage, current, and
resistance.
What is the difference in electric potential between two points per unit electric charge? - CORRECT
ANSWER-Electric Voltage; measured in Volts
Define electric current. - CORRECT ANSWER-Flow of electric charge measured in amps (A)
Define electrical resistance - CORRECT ANSWER-the measure of how difficult it is to pass an electric
current through a conductor measured in ohms (omega)
Ohm's Law - CORRECT ANSWER-current is directly proportional to voltage and inversely proportional to
resistance
What is Electric Power? - CORRECT ANSWER-the rate at which electrical energy is converted to another
form of energy
How is Electric Power measured? - CORRECT ANSWER-in Watts (W)
Voltage Division - CORRECT ANSWER-Allows calculation of voltage across resistors in series
Current Division - CORRECT ANSWER-The splitting of currents among branches of a circuit (in parallel)
, Kirchhoff's Current Law (KCL) - CORRECT ANSWER-The amount of current flowing into a node must equal
the amount of current flowing out of it; I(in)=I(out)
Kirchhoff's Voltage Law - CORRECT ANSWER-The sum of the voltage drops across all devices in any
closed loop of a circuit will always be zero.
Inductors - CORRECT ANSWER-Electrical devices that resist changes in electric current by storing energy
in magnetic fields and releasing it as neccssary.
What are inductors normally made of - CORRECT ANSWER-a coil of wire wrapped around a core of air,
iron, or ferrite.
What is inductance measured in? - CORRECT ANSWER-Henries (H)
Capacitors - CORRECT ANSWER-Are electrical devices that resist changes in voltage just like inductors.
What are capacitors made of typically - CORRECT ANSWER-At least two electrical conductors separated
by an insulator, or dielectric.
What is capacitance measured in? - CORRECT ANSWER-Farads
Capacitance is directly proportional to the.... - CORRECT ANSWER-surface area of the conductors
Capacitance is inversely proportional to the... - CORRECT ANSWER-separation between two plates
AC Current - CORRECT ANSWER-Current in which the flow of electrical charge periodically reverses
direction
Impedance - CORRECT ANSWER-The resistance to change in voltage or current
For ideal capacitors and inductors... - CORRECT ANSWER-impedance is purely imaginary
Electronics quick practice test 2025 with
correct verified answers
What are the three primary parameters of electricity? - CORRECT ANSWER-Voltage, current, and
resistance.
What is the difference in electric potential between two points per unit electric charge? - CORRECT
ANSWER-Electric Voltage; measured in Volts
Define electric current. - CORRECT ANSWER-Flow of electric charge measured in amps (A)
Define electrical resistance - CORRECT ANSWER-the measure of how difficult it is to pass an electric
current through a conductor measured in ohms (omega)
Ohm's Law - CORRECT ANSWER-current is directly proportional to voltage and inversely proportional to
resistance
What is Electric Power? - CORRECT ANSWER-the rate at which electrical energy is converted to another
form of energy
How is Electric Power measured? - CORRECT ANSWER-in Watts (W)
Voltage Division - CORRECT ANSWER-Allows calculation of voltage across resistors in series
Current Division - CORRECT ANSWER-The splitting of currents among branches of a circuit (in parallel)
, Kirchhoff's Current Law (KCL) - CORRECT ANSWER-The amount of current flowing into a node must equal
the amount of current flowing out of it; I(in)=I(out)
Kirchhoff's Voltage Law - CORRECT ANSWER-The sum of the voltage drops across all devices in any
closed loop of a circuit will always be zero.
Inductors - CORRECT ANSWER-Electrical devices that resist changes in electric current by storing energy
in magnetic fields and releasing it as neccssary.
What are inductors normally made of - CORRECT ANSWER-a coil of wire wrapped around a core of air,
iron, or ferrite.
What is inductance measured in? - CORRECT ANSWER-Henries (H)
Capacitors - CORRECT ANSWER-Are electrical devices that resist changes in voltage just like inductors.
What are capacitors made of typically - CORRECT ANSWER-At least two electrical conductors separated
by an insulator, or dielectric.
What is capacitance measured in? - CORRECT ANSWER-Farads
Capacitance is directly proportional to the.... - CORRECT ANSWER-surface area of the conductors
Capacitance is inversely proportional to the... - CORRECT ANSWER-separation between two plates
AC Current - CORRECT ANSWER-Current in which the flow of electrical charge periodically reverses
direction
Impedance - CORRECT ANSWER-The resistance to change in voltage or current
For ideal capacitors and inductors... - CORRECT ANSWER-impedance is purely imaginary
