2.1 KiB
Glossary
Impedance (Z)
In electrical engineering, impedance is the opposition to alternating current presented by the combined effect of resistance and reactance in a circuit.
formulas#Impedance in a Circuit
Voltage (V)
Voltage, electric potential difference, electric pressure or electric tension is the difference in electric potential between two points.
Resistance (R)
The electrical resistance of an object is a measure of its opposition to the flow of electric current.
Capacitance (C)
Capacitance is the ability of a component or circuit to collect and store energy in the form of an electrical charge.
Inductance (L)
Inductance is the tendency of an electrical conductor to oppose a change in the electric current flowing through it.
Current (I)
How many electrons flow through a circuit in a second
Polarity
Means if a component is symmetric or not Polarised means that a component is not symmetric
LED
Anode - The shorter Leg Cathode - The longer Leg
Diode
Anode
The positive end of a diode
Cathode
The negative end of a diode
Conventional Current Flow
When electricity was discovered people thought the electrons flow from the positive terminal to the negative, in actuality they flow in the opposite direction, but it is still possible to calculate the flow with the old way.
Reactive Components
A component is a reactive component when it resists to changes in current or voltage.