NCATT AET 2026 STUDY GUIDE QUESTIONS AND
ANSWERS SCORED A+
✔✔Coluomb is equal to - ✔✔6.28 billion-billion electrons
✔✔Coluomb is the - ✔✔actual count of electrons in a unit of measure
✔✔Joule - ✔✔amount of electrons in a suspended state as compared to some
electrons in an adjacent part of the circuit
✔✔Electromotive Force - ✔✔is the force required to move an electron measured in volts
✔✔EMF - ✔✔is the force required to cause one amp of the current of flow through one
ohm of reistance
✔✔Mechanical, Chemical, Friction - ✔✔three methods used to generate EMF
✔✔Volt - ✔✔basic unit of measure of electrical pressure
✔✔A Volt is that amount of force - ✔✔required to cause on amp of current to flow
through one ohm of resistance
✔✔E is the symbol for - ✔✔volts
✔✔Current is - ✔✔the flow of electricity that pass a given point in a specific amount of
time
✔✔I is the symbol for - ✔✔amps
✔✔Amps - ✔✔unit of measure used to express the flow of electrons
✔✔Current flows - ✔✔from a negative electrical potential to a positive one
✔✔Resistance is - ✔✔electrical opposition to the current flow in a conductor
✔✔Resistance does what - ✔✔opposed or slows down another force, drops, voltage
and consumes power
✔✔First rule of resistance - ✔✔current will take the path of less resistance
✔✔Zig zag line - ✔✔symbol of a resistor in an electrical schematic
✔✔Resistance is measured - ✔✔in Ohms and uses the omega symbol
,✔✔One ohm - ✔✔limits the flow of current to one amp under a voltage pressure of one
volt
✔✔Ohms law states - ✔✔the amount of current flowing in a circuit is directly
proportional to the circuit voltage and inversely proportional to the circuit resistance
✔✔Ohm's Law - ✔✔I= V/R, Current is equal to Voltage divided by resistance
✔✔Watt - ✔✔a basic unit of electrical power that is the product of voltage multiplied by
current
✔✔One Watt equals - ✔✔1/746 horsepower
✔✔One watt is produced when - ✔✔a circut that has one amp of current flowing under
a pressure of one volt
✔✔First rule of series circuits - ✔✔there is only one path for current to flow therefore
current equal throughout the circuit
✔✔Second rule of series circuits - ✔✔the voltage drop at each resistor will be the sum
of total applied voltage
✔✔Parallel circuits - ✔✔are those that offer several paths for current flow
✔✔Current is divided in a parallel circuit - ✔✔evenly between the branches
✔✔In a parallel circuit the total current load - ✔✔is the sum of the currents in the
banches
✔✔In a parallel circuit, voltage is - ✔✔common through each of the branches
✔✔In series parallel cicuits, - ✔✔each section needs to be worked to its simplest
elements then reworked to fill in the unknowns
✔✔A capacitor - ✔✔an electrical component used to store electrical energy in the form
of an electrostatic field
✔✔A capacitor is made of - ✔✔two parallel conductors seperated by an insulator called
the diaelectric
✔✔A capacitor's electrical property - ✔✔blocks DC voltages and passes AC voltages
✔✔A battery is a device - ✔✔made of one or more individual electrochemical cells used
to store chemical energy and make that every available in chemical form
, ✔✔Primary batteries - ✔✔once expended cannot be recharged
✔✔Secondary batteries - ✔✔can be recharged because the application of a voltage can
release the electrons back into solution
✔✔Batteries store - ✔✔DC power
✔✔Magnetism - ✔✔is the ability of a magnet to attract certain materials containing iron
and other ferrous material
✔✔Magnetism describes - ✔✔a force that can influence the flow of electons
✔✔Around magnets are - ✔✔magnetic flux lines that travel from the north end of the
magnetic to the south
✔✔Five rules of magnetic lines of flux - ✔✔1. They take the most direct path
2. They never cross
3. Travel from north to south
4. Only pass through permeable material
5. Opposites attract, likes repel
✔✔Magnetic permeability - ✔✔a measure of ease that lines of magnetic flux travel
through a material
✔✔Magnetic permeability is based - ✔✔on the ratio of magnetic flux density in a
substance to the magnetizing force that produces it
✔✔Steel and Iron - ✔✔two examples of magnetically permeable metals
✔✔Magnetic Field - ✔✔when current flows in a conductor, a magnetic field is formed
✔✔A magnetic field is directly proportional to - ✔✔the amount of current that flows
through the conductor
✔✔When DC voltage is applied to a conductor - ✔✔the magnetic field will remain
stationary
✔✔When AC voltage is applied to a conductor - ✔✔the magnetic field will expand and
contract at the same rate as the applied frequency
✔✔Counter or Back EMF - ✔✔is voltage applied to a conductor that opposes the
applied EMF
ANSWERS SCORED A+
✔✔Coluomb is equal to - ✔✔6.28 billion-billion electrons
✔✔Coluomb is the - ✔✔actual count of electrons in a unit of measure
✔✔Joule - ✔✔amount of electrons in a suspended state as compared to some
electrons in an adjacent part of the circuit
✔✔Electromotive Force - ✔✔is the force required to move an electron measured in volts
✔✔EMF - ✔✔is the force required to cause one amp of the current of flow through one
ohm of reistance
✔✔Mechanical, Chemical, Friction - ✔✔three methods used to generate EMF
✔✔Volt - ✔✔basic unit of measure of electrical pressure
✔✔A Volt is that amount of force - ✔✔required to cause on amp of current to flow
through one ohm of resistance
✔✔E is the symbol for - ✔✔volts
✔✔Current is - ✔✔the flow of electricity that pass a given point in a specific amount of
time
✔✔I is the symbol for - ✔✔amps
✔✔Amps - ✔✔unit of measure used to express the flow of electrons
✔✔Current flows - ✔✔from a negative electrical potential to a positive one
✔✔Resistance is - ✔✔electrical opposition to the current flow in a conductor
✔✔Resistance does what - ✔✔opposed or slows down another force, drops, voltage
and consumes power
✔✔First rule of resistance - ✔✔current will take the path of less resistance
✔✔Zig zag line - ✔✔symbol of a resistor in an electrical schematic
✔✔Resistance is measured - ✔✔in Ohms and uses the omega symbol
,✔✔One ohm - ✔✔limits the flow of current to one amp under a voltage pressure of one
volt
✔✔Ohms law states - ✔✔the amount of current flowing in a circuit is directly
proportional to the circuit voltage and inversely proportional to the circuit resistance
✔✔Ohm's Law - ✔✔I= V/R, Current is equal to Voltage divided by resistance
✔✔Watt - ✔✔a basic unit of electrical power that is the product of voltage multiplied by
current
✔✔One Watt equals - ✔✔1/746 horsepower
✔✔One watt is produced when - ✔✔a circut that has one amp of current flowing under
a pressure of one volt
✔✔First rule of series circuits - ✔✔there is only one path for current to flow therefore
current equal throughout the circuit
✔✔Second rule of series circuits - ✔✔the voltage drop at each resistor will be the sum
of total applied voltage
✔✔Parallel circuits - ✔✔are those that offer several paths for current flow
✔✔Current is divided in a parallel circuit - ✔✔evenly between the branches
✔✔In a parallel circuit the total current load - ✔✔is the sum of the currents in the
banches
✔✔In a parallel circuit, voltage is - ✔✔common through each of the branches
✔✔In series parallel cicuits, - ✔✔each section needs to be worked to its simplest
elements then reworked to fill in the unknowns
✔✔A capacitor - ✔✔an electrical component used to store electrical energy in the form
of an electrostatic field
✔✔A capacitor is made of - ✔✔two parallel conductors seperated by an insulator called
the diaelectric
✔✔A capacitor's electrical property - ✔✔blocks DC voltages and passes AC voltages
✔✔A battery is a device - ✔✔made of one or more individual electrochemical cells used
to store chemical energy and make that every available in chemical form
, ✔✔Primary batteries - ✔✔once expended cannot be recharged
✔✔Secondary batteries - ✔✔can be recharged because the application of a voltage can
release the electrons back into solution
✔✔Batteries store - ✔✔DC power
✔✔Magnetism - ✔✔is the ability of a magnet to attract certain materials containing iron
and other ferrous material
✔✔Magnetism describes - ✔✔a force that can influence the flow of electons
✔✔Around magnets are - ✔✔magnetic flux lines that travel from the north end of the
magnetic to the south
✔✔Five rules of magnetic lines of flux - ✔✔1. They take the most direct path
2. They never cross
3. Travel from north to south
4. Only pass through permeable material
5. Opposites attract, likes repel
✔✔Magnetic permeability - ✔✔a measure of ease that lines of magnetic flux travel
through a material
✔✔Magnetic permeability is based - ✔✔on the ratio of magnetic flux density in a
substance to the magnetizing force that produces it
✔✔Steel and Iron - ✔✔two examples of magnetically permeable metals
✔✔Magnetic Field - ✔✔when current flows in a conductor, a magnetic field is formed
✔✔A magnetic field is directly proportional to - ✔✔the amount of current that flows
through the conductor
✔✔When DC voltage is applied to a conductor - ✔✔the magnetic field will remain
stationary
✔✔When AC voltage is applied to a conductor - ✔✔the magnetic field will expand and
contract at the same rate as the applied frequency
✔✔Counter or Back EMF - ✔✔is voltage applied to a conductor that opposes the
applied EMF
