# 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