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ATT Test 4|Questions with A+ Rated Answers
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ATT Test 4|Questions with A+ Rated Answers
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ATT Test 4|Questions with A+ RatedAnswers
alternating current - -An electrical current that changes both in magnitude
and direction.
- alternators and generators - -AC is developed by sources called
_____________.
- alternator - -A device which converts mechanical energy into an
alternating electrical current.
- generator - -A rotating device for converting mechanical energy into an
alternating electrical energy.
- frequency, period, and wavelength - -Three basic sine wave
characteristics:
- two alterations - -One cycle of AC always consists of ______________.
- Hertz - -A unit of measure for frequency.
- frequency - -_________ is the number of complete cycles occurring in one
second.
- period - -The time it takes for a sine wave to complete one cycle.
- wavelength - -The actual distance between the beginning and end of one
AC sine wave cycle.
- negative to positive - -AC current flows from ______________.
- induction - -The magnetic or electric effect of one body on another without
any physical contact between them.
- flux - -A magnetic field is composed of magnetic lines of _______.
- north, south - -The direction of the flux lines is from the _______ Pole to the
_______ Pole.
- electromagnetic induction - -The action of a conductor moving through a
magnetic field causing current flow.
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