ATT Test 4 Questions With Correct Answers

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.