ele Flashcards
voltage is the same as _____ in plumbing
pressure, voltage was originally call electrical pressure
_______ is analogous to flow, or pipe size in plumbing
current
to run electricity over long distances we want high ______
voltage, but in delivery we want lower voltage to reduce danger
Describe Ohm’s Law
Power (Watts W) = Current (Amps or I) x Pressure (Voltage V)
or
Gallons per minute coming from hose = Size of the hose (Amps) x Pressure in the hose (Voltage)
using waste heat to generate electricity is called ______
cogeneration
A _____ transformer gives you a choice between levels
Wye, three wires and a ground creating a Y shape, you get to choose between the three individually
what is power factor
it is the result of the current and voltage being out of phase, measured between 0 and 1
A ______ changes current from AC to DC
Rectifier, the opposite is called an inverter
What is switchgear
equipment that turns off power to a building
Power factor is utilized in which type of current
AC