96 lines
1.8 KiB
Markdown
96 lines
1.8 KiB
Markdown
# Glossary
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## Volts
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Voltage
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## Amperes
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Current
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## Ohms
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Resistance
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## Hertz (f)
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Term | Symbol | Weight
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----------|------- | -----
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Hertz | Hz | $10^0$
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Kilohertz | kHz | $10^{3}$
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Megahertz | mHz | $10^6$
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## Watt (Power)
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$Power = V * I = \frac{V^{2}}{R} = I^{2}R$
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Joules per Second
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Term | Symbol | Weight
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-----------|----|------
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Nanowatt | nW | 10-9
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Microwatt | $\micro$W | $10^{-6}$
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Milliwatt | mW | $10^{-3}$
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Watt | W | $10^{0}$
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Kilowatt | kW | $10^{3}$
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Megawatt | MW | $10^{6}$
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Gigawatt | GW | $10^{9}$
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**Examples:**
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Device | Power
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-------|----------
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Arduino| 167mW
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Laptop | 1.5W
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House | 2.2kW
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## Ohms Law
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$$
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V = {I}*{R}
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$$
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## Impedance (Z)
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## Voltage (V)
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## Resistance (R)
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## Capacitance (C)
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## Current (I)
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How many electrons flow through a circuit in a second
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## Polarity
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Means if a component is symmetric or not
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Polarised means that a component is not symmetric
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## Voltage Divider
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## Farad
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1 Farad = the ability to store 1 couloumb
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Term | Symbol | Weight
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Picofarad | pW | $10^{-12}$
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Nanofarad | nF | $10^{-9}$
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Microfarad | $\micro$F | $10^{-6}$
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Milifarad | mF | $10^{-3}$
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Farad | F | $10^0$
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Kilofarad | kF | $10^{3}$
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## Couloumb
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1 coulomb is the electric charge transported within one second through the cross-section of a conductor in which an electric current of the strength of 1 ampere flows.
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## LED
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Anode - The shorter Leg
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Cathode - The longer Leg
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## Diode
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## Anode
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The positive end of a diode
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## Cathode
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The negative end of a diode
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## Conventional Current Flow
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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. |