Electricity Flashcards
centralized generation of electricity
is centralized at a power plant and then is distributed thought high voltage power lines down to house. it steps up and steps down via transformers
higher voltage = what for cables?
less amps, smaller cables
decentralized generation of electricty
neighborhood/bldng based. create on site and use. ie. net zero building.
the issues are theres no way to store excess
what is the equation for watts?
volts x amps = watts
watts is power, you can manipulate volts and amps to get watts you need
volts is pressure of water
amps is size of pipe
watts is how fast you can fill the bucket with water
impacts on design
visable meter & weather pipe, connection to power pole
Amp
unit flow of electrons in a conductor
energy = ?
power x time
impedance
resistance in alternating current (ac), measured in Ohms
Ohm
unit of resistance in elec circuit
power factor
phase difference between voltage and current in AC unit
reactance
part of elec resistance in an AC unit
volt
unit of electromotive force or potential difference.
1 V is amount of force to cuase a current of 1 A to flow through a conductor whose resistance is 1 Ohm
watt
unit of electrical power
basic circuit
conductor, current, voltage, resistance.
can be integrated with a switch
two basic types of elec circuits
series & parallel
