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Level 2 Module 1 vocab definitions (ABC apprentice year 2) 100% vERIFIED
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Frequency - ANSWER The number of cycles an alternating electric current, sound wave, or vibrating object undergoes per second. Hertz (Hz) - ANSWER A unit of frequency; one hertz equals one cycle per second. Peak Voltage - ANSWER The peak value of a sinusoidally varying (cyclical) voltage o...

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  • August 26, 2024
  • 2
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • level 2 module 1
  • level 2 module 1 vocab definitions abc apprentice
  • frequency answer the number of cycles an altern
  • hertz hz answer a unit of frequency one hert

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Level 2 Module 1
vocab definitions (ABC
apprentice year 2)
100% vERIFIED
Frequency - ANSWER The number of cycles an alternating electric current, sound wave, or vibrating
object undergoes per second.



Hertz (Hz) - ANSWER A unit of frequency; one hertz equals one cycle per second.



Peak Voltage - ANSWER The peak value of a sinusoidally varying (cyclical) voltage or current is equal
to the root-mean-square (rms) value multiplied by the square root of two (1.414). AC voltages are
usually expressed as rms values; that is, 120 volts, 208 volts, 240 volts, 277 volts, 480 volts etc. are all
rms values. The peak voltage, however differs. For example, the peak value of 120 volts (rms) is
actually 120 x 1.414 = 169.71 volts.



Radian - ANSWER An angle at the center of a circle, subtending (opposite to) an arc of the circle that
is equal in length to the radius.



Inductance - ANSWER The creation of a voltage due to a time-varying current; also, the opposition to
current change, causing current changes to lag behind voltage changes. The unit of measure for
inductance is the henry (H).



Micro (mu) - ANSWER Prefix designating one-millionth of a unit. For example, one microfarad is one-
millionth of a farad.

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