Parts list and theory
Voltage = potential between two charges. Defined as the derivative of the flux linkage:
Current = flow of electrons Defined as the rate of change of the charge:
There are 3 parameters in an electrical circuit:
In a resistor voltage and current are in sync.
In capacitors voltage leads current. Capacitors are good as a low pass filter.
In inductors current leads voltage. Current equals the negative derivative of the voltage. Inductors are good as a high pass filter.
relationship between voltage and current
in a circuit
in series voltage drops and current stays constant in parallel voltage stays constant and current divides according to the resistance
voltage stays constant in parallel and current drops in p
pizoelectric = a crystal under compression creates current
vacuum tube = electron emitter in a vacuum
integrated circuit a semiconductor doped with impurities
group 4 elements doped with group 3 and 5
electrons and holes
Resistors in series (Christmas lights, stove)
3.5, 5, 12 Volts
power distribution (three phase power)