ATT Test 4 Actual Exam Complete Questions with Correct
Answers (Verified Answers) Already Graded A+2025
An electrical current that changes both in magnitude and direction. -Correct Answer
✔alternating current
AC is developed by sources called _____________. -Correct Answer ✔alternators and
generators
A device which converts mechanical energy into an alternating electrical current. -
Correct Answer ✔alternator
A rotating device for converting mechanical energy into an alternating electrical energy.
-Correct Answer ✔generator
Three basic sine wave characteristics: -Correct Answer ✔frequency, period, and
wavelength
One cycle of AC always consists of ______________. -Correct Answer ✔two alterations
A unit of measure for frequency. -Correct Answer ✔Hertz
_________ is the number of complete cycles occurring in one second. -Correct Answer
✔frequency
The time it takes for a sine wave to complete one cycle. -Correct Answer ✔period
The actual distance between the beginning and end of one AC sine wave cycle. -
Correct Answer ✔wavelength
AC current flows from ______________. -Correct Answer ✔negative to positive
The magnetic or electric effect of one body on another without any physical contact
between them. -Correct Answer ✔induction
A magnetic field is composed of magnetic lines of _______. -Correct Answer ✔flux
The direction of the flux lines is from the _______ Pole to the _______ Pole. -Correct
Answer ✔north, south
The action of a conductor moving through a magnetic field causing current flow. -
Correct Answer ✔electromagnetic induction
1|Page