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Ampere ( A, amp, amperage) - ANSWER ✔✔• Unit of measurement
used to express the flow of electrons (electrical current)
• One ampere is a rate of flow of one coulomb (6.28 billion - billion
electrons) passing a given point in an electrical circuit per second
• In mathematical problems amperage is expressed by the letter "I"
Battery - ANSWER ✔✔• A device consisting of a number of primary
voltaic cells (cells that cannot be recharged) or secondary cells (cells
that can be recharged) connected in series to obtain a desired DC
voltage
,• A battery stores chemical energy and converts the energy into electrical
form
• Aircraft storage batteries are generally rated at 12 or 24 volts
Capacitor - ANSWER ✔✔• Electrical device used to store charge and
energy in the form of an electrostatic field
• A capacitor is a device made of two parallel conductors separated by
an insulator
Conductor - ANSWER ✔✔• Common building block of electrical
circuits that easily permits the movement of electrons from an electrical
source to a load and back to the electrical source with a minimum of
resistance.
• A conductor's resistance depends on such factors as cross sectional
area, length, temperature, and conductor material.
Coulomb - ANSWER ✔✔• Basic unit of electrical quantity.
• A coulomb is equal to 6.28 billion - billion electrons (6.28 x 10 to the
18th)
Current - ANSWER ✔✔• The flow of electrons through a conductor is
known as current flow.
• The rate of current flow is measured in amperes.
,Direct Current (DC) - ANSWER ✔✔• A flow of electrons in one
direction throughout an electric circuit with constant voltage and current.
• Direct current is caused by a constant difference of potential, both
negative and positive.
Electron - ANSWER ✔✔• Negatively charged subatomic particles that
are located and travel around (orbit) the nucleus in an imaginary sphere
or shell at the speed of light (186,000 miles/second)
• Electrons are involved in the conduction of electricity.
EMF (electromotive force) - ANSWER ✔✔• The force that causes
electrons to flow through a conductor.
• This force is abbreviated e.m.f.
• The unit of measurement for eletromotive force is the volt.
• In mathematical problems voltage is expressed by the letter "E".
Farad - ANSWER ✔✔• Basic unit of capacitance
• One farad holds one coulomb under a pressure of one volt.
Henry (H) - ANSWER ✔✔• Basic unit of measurement for inductance
of an electrical coil
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, • One (1) henry is the inductance of a coil when a change of current of
one (1) ampere per second induces an e.m.f. of one (1) volt
• In mathematical problems inductance is expressed by the symbol "L".
Inductor - ANSWER ✔✔• Coil or other device used to introduce
inductance into a circuit.
• An inductor is a winding, or coiling, of multiple turns of wire
Insulator - ANSWER ✔✔• Material or device used to prevent the
passage of heat, electricity, or sound from one medium to another.
Left hand rule - ANSWER ✔✔• Refers to electrical
• This rule is for determining the direction of movement of a current -
carrying conductor in a magnetic field
Magnetic Permeability - ANSWER ✔✔• Measure of ease that lines of
flux travel through a material
Magnetism - ANSWER ✔✔• Ability of a magnet to attract certain
materials containing iron and to influence electrons
• Magnetism is the principle way to effectively produce AC electricity
Metric Prefixes - ANSWER ✔✔• Measurements relating or using the
metric system of measurement
Verifed Ace the Test
Ampere ( A, amp, amperage) - ANSWER ✔✔• Unit of measurement
used to express the flow of electrons (electrical current)
• One ampere is a rate of flow of one coulomb (6.28 billion - billion
electrons) passing a given point in an electrical circuit per second
• In mathematical problems amperage is expressed by the letter "I"
Battery - ANSWER ✔✔• A device consisting of a number of primary
voltaic cells (cells that cannot be recharged) or secondary cells (cells
that can be recharged) connected in series to obtain a desired DC
voltage
,• A battery stores chemical energy and converts the energy into electrical
form
• Aircraft storage batteries are generally rated at 12 or 24 volts
Capacitor - ANSWER ✔✔• Electrical device used to store charge and
energy in the form of an electrostatic field
• A capacitor is a device made of two parallel conductors separated by
an insulator
Conductor - ANSWER ✔✔• Common building block of electrical
circuits that easily permits the movement of electrons from an electrical
source to a load and back to the electrical source with a minimum of
resistance.
• A conductor's resistance depends on such factors as cross sectional
area, length, temperature, and conductor material.
Coulomb - ANSWER ✔✔• Basic unit of electrical quantity.
• A coulomb is equal to 6.28 billion - billion electrons (6.28 x 10 to the
18th)
Current - ANSWER ✔✔• The flow of electrons through a conductor is
known as current flow.
• The rate of current flow is measured in amperes.
,Direct Current (DC) - ANSWER ✔✔• A flow of electrons in one
direction throughout an electric circuit with constant voltage and current.
• Direct current is caused by a constant difference of potential, both
negative and positive.
Electron - ANSWER ✔✔• Negatively charged subatomic particles that
are located and travel around (orbit) the nucleus in an imaginary sphere
or shell at the speed of light (186,000 miles/second)
• Electrons are involved in the conduction of electricity.
EMF (electromotive force) - ANSWER ✔✔• The force that causes
electrons to flow through a conductor.
• This force is abbreviated e.m.f.
• The unit of measurement for eletromotive force is the volt.
• In mathematical problems voltage is expressed by the letter "E".
Farad - ANSWER ✔✔• Basic unit of capacitance
• One farad holds one coulomb under a pressure of one volt.
Henry (H) - ANSWER ✔✔• Basic unit of measurement for inductance
of an electrical coil
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2026. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
3
, • One (1) henry is the inductance of a coil when a change of current of
one (1) ampere per second induces an e.m.f. of one (1) volt
• In mathematical problems inductance is expressed by the symbol "L".
Inductor - ANSWER ✔✔• Coil or other device used to introduce
inductance into a circuit.
• An inductor is a winding, or coiling, of multiple turns of wire
Insulator - ANSWER ✔✔• Material or device used to prevent the
passage of heat, electricity, or sound from one medium to another.
Left hand rule - ANSWER ✔✔• Refers to electrical
• This rule is for determining the direction of movement of a current -
carrying conductor in a magnetic field
Magnetic Permeability - ANSWER ✔✔• Measure of ease that lines of
flux travel through a material
Magnetism - ANSWER ✔✔• Ability of a magnet to attract certain
materials containing iron and to influence electrons
• Magnetism is the principle way to effectively produce AC electricity
Metric Prefixes - ANSWER ✔✔• Measurements relating or using the
metric system of measurement
