ATT TEST 3 STUDY GUIDE Questions and Answers 100% Verified UPDATED!!!

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ATT TEST 3 STUDY GUIDE Questions and Answers
100% Verified UPDATED!!!



Alternating Current (AC)
First flows in one direction and then in the other, Reversing
many times each second.
Direct Current (DC)
flows in one direction only
Period
Is the length of time required to complete one cycle of an AC
Sine Wave.
Frequency
Is Determined by the number of cycles that occur in one
second. (F)
The Formula For Frequency
F=1/T
Wavelength
Is the distance from the beginning to one complete cycle of Ac
Sine Wave.

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The Formula For Wavelength
(300 X 10^6)/F
The Three Characteristics Needed For Sine Wave Calculations.
Frequency, Period And Wavelength
Period
Is Determined by the time taken to complete one cycle of The
AC Sine Wave. (T)
Wavelength
Is determined by measuring the actual distance between
beginning and end of one cycle.
Induction
Is the varying magnetic flux in a magnetic field for the
purposes of generating AC current
In order To Induct current three things are required...
A Conductor, Magnetic Field And Relative Motion.
Current Is Induced By...
Moving a conductor through a stationary Magnetic Field.
Four Methods Used to describe Ac Voltage or Current in a Sine
Wave...
Peak, Peak To Peak, RMS and Average