Flashcards in Network powering 16 Deck (22):
The direction of an electrical field in a radiated wave
Four types of AC waveforms
Sine wave, Square wave, Quasi-square wave, and Sawtooth wave
Root Mean Square
What is the relationship between two signal attributes that are represented graphically
One complete sine wave
The number of cycles of an AC waveform that occur in one second
Cycles per second
The physical length of one cycle of the voltage waveform
The peak value of an AC waveform
The position of the amplitude value as related to time
Resistance equals voltage divided by current
The amount of energy available to move a certain number of electrons from one point to another in an electrical circuit
Batteries should be inspected every ___to ___ months to ensure optimum performance
3 to 6
Transformer that takes 120VAC to 60 or 90VAC
Step down, Ferroresonant transformer
Center conductor resistance + Sheath resistance=
DC Loop resistance
Batteries also produce _____________ gas during charging operations. This gas may vent in an overcharging situation
When removing batteries, always switch the module's TURN ___________________off before disconnecting the battery connector.
Measured in Ohms, the opposition a material offers to the flow of current, used to control the amount of amperage in a circuit.
Which way do electrons flow in a circuit?
From negative to positive
Wavelength = Speed of Light / Frequency
The electricity provided by the local power company.