ATT Test 4 Exam 2025 With 100%
Correct Answers
alternating current - CORRECT ANSWER✔✔An electrical current that changes both in
magnitude and direction.
alternators and generators - CORRECT ANSWER✔✔AC is developed by sources called
_____________.
alternator - CORRECT ANSWER✔✔A device which converts mechanical energy into an
alternating electrical current.
generator - CORRECT ANSWER✔✔A rotating device for converting mechanical energy into an
alternating electrical energy.
frequency, period, and wavelength - CORRECT ANSWER✔✔Three basic sine wave
characteristics:
two alterations - CORRECT ANSWER✔✔One cycle of AC always consists of ______________.
Hertz - CORRECT ANSWER✔✔A unit of measure for frequency.
frequency - CORRECT ANSWER✔✔_________ is the number of complete cycles occurring in
one second.
period - CORRECT ANSWER✔✔The time it takes for a sine wave to complete one cycle.
, wavelength - CORRECT ANSWER✔✔The actual distance between the beginning and end of one
AC sine wave cycle.
negative to positive - CORRECT ANSWER✔✔AC current flows from ______________.
induction - CORRECT ANSWER✔✔The magnetic or electric effect of one body on another
without any physical contact between them.
flux - CORRECT ANSWER✔✔A magnetic field is composed of magnetic lines of _______.
north, south - CORRECT ANSWER✔✔The direction of the flux lines is from the _______ Pole to
the _______ Pole.
electromagnetic induction - CORRECT ANSWER✔✔The action of a conductor moving through a
magnetic field causing current flow.
RMS - CORRECT ANSWER✔✔The effective value of an AC voltage that causes the same amount
of power dissipation as a specific DC voltage.
phase - CORRECT ANSWER✔✔______ isthe relative position of AC quantities in time reference
to each other.
voltage - CORRECT ANSWER✔✔RC transients occur when the _______ across a capacitor
changes.
voltage leads current by 90 - CORRECT ANSWER✔✔What is the phase relationship between
voltage and current through an inductor?
Correct Answers
alternating current - CORRECT ANSWER✔✔An electrical current that changes both in
magnitude and direction.
alternators and generators - CORRECT ANSWER✔✔AC is developed by sources called
_____________.
alternator - CORRECT ANSWER✔✔A device which converts mechanical energy into an
alternating electrical current.
generator - CORRECT ANSWER✔✔A rotating device for converting mechanical energy into an
alternating electrical energy.
frequency, period, and wavelength - CORRECT ANSWER✔✔Three basic sine wave
characteristics:
two alterations - CORRECT ANSWER✔✔One cycle of AC always consists of ______________.
Hertz - CORRECT ANSWER✔✔A unit of measure for frequency.
frequency - CORRECT ANSWER✔✔_________ is the number of complete cycles occurring in
one second.
period - CORRECT ANSWER✔✔The time it takes for a sine wave to complete one cycle.
, wavelength - CORRECT ANSWER✔✔The actual distance between the beginning and end of one
AC sine wave cycle.
negative to positive - CORRECT ANSWER✔✔AC current flows from ______________.
induction - CORRECT ANSWER✔✔The magnetic or electric effect of one body on another
without any physical contact between them.
flux - CORRECT ANSWER✔✔A magnetic field is composed of magnetic lines of _______.
north, south - CORRECT ANSWER✔✔The direction of the flux lines is from the _______ Pole to
the _______ Pole.
electromagnetic induction - CORRECT ANSWER✔✔The action of a conductor moving through a
magnetic field causing current flow.
RMS - CORRECT ANSWER✔✔The effective value of an AC voltage that causes the same amount
of power dissipation as a specific DC voltage.
phase - CORRECT ANSWER✔✔______ isthe relative position of AC quantities in time reference
to each other.
voltage - CORRECT ANSWER✔✔RC transients occur when the _______ across a capacitor
changes.
voltage leads current by 90 - CORRECT ANSWER✔✔What is the phase relationship between
voltage and current through an inductor?
