ATT Test 4 Questions And Answers (Graded A)

ATT Test 4 Questions And
Answers (Graded A)




alternating current - ✔✔✔ANSWER-An electrical current that changes both in
magnitude and direction.


alternators and generators - ✔✔✔ANSWER-AC is developed by sources called
_____________.


alternator - ✔✔✔ANSWER-A device which converts mechanical energy into an
alternating electrical current.


generator - ✔✔✔ANSWER-A rotating device for converting mechanical energy
into an alternating electrical energy.


frequency, period, and wavelength - ✔✔✔ANSWER-Three basic sine wave
characteristics:


two alterations - ✔✔✔ANSWER-One cycle of AC always consists of
______________.

, Hertz - ✔✔✔ANSWER-A unit of measure for frequency.


frequency - ✔✔✔ANSWER-_________ is the number of complete cycles
occurring in one second.


period - ✔✔✔ANSWER-The time it takes for a sine wave to complete one cycle.


wavelength - ✔✔✔ANSWER-The actual distance between the beginning and end
of one AC sine wave cycle.


negative to positive - ✔✔✔ANSWER-AC current flows from ______________.


induction - ✔✔✔ANSWER-The magnetic or electric effect of one body on another
without any physical contact between them.


flux - ✔✔✔ANSWER-A magnetic field is composed of magnetic lines of
_______.


north, south - ✔✔✔ANSWER-The direction of the flux lines is from the _______
Pole to the _______ Pole.


electromagnetic induction - ✔✔✔ANSWER-The action of a conductor moving
through a magnetic field causing current flow.


RMS - ✔✔✔ANSWER-The effective value of an AC voltage that causes the same
amount of power dissipation as a specific DC voltage.