Mindblown: a blog about philosophy.
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Electrical Ground Symbols
Electrical ground symbols of circuit diagram – earth ground, chassis ground, digital ground. Symbol Name Description Earth Ground Used for zero potential reference and electrical shock protection. Chassis Ground Connected to the chassis of the circuit Digital / Common Ground
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Electronic Switch Symbols
Electrical & electronic switch symbols of schematic diagram – toggle switch, pushbutton switch, DIP switch, relay, jumper, solder bridge. Symbol Name Description SPST Toggle Switch Disconnects current when open SPDT Toggle Switch Selects between two connections Pushbutton Switch (N.O) Momentary switch – normally open Pushbutton Switch (N.C) Momentary switch – normally closed DIP Switch DIP…
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Volt (V)
Volt definition Volt is the electrical unit of voltage or potential difference (symbol: V). One Volt is defined as energy consumption of one joule per electric charge of one coulomb. 1V = 1J/C One volt is equal to current of 1 amp times resistance of 1 ohm: 1V = 1A ⋅ 1Ω Alessandro Volta The…
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Ohm (Ω)
Ohm (symbol Ω) is the electrical unit of resistance. The Ohm unit was named after George Simon Ohm. 1Ω = 1V / 1A = 1J ⋅ 1s / 1C2 Table of resistance values of Ohm name symbol conversion example milli-ohm mΩ 1mΩ = 10-3Ω R0 = 10mΩ ohm Ω – R1 = 10Ω kilo-ohm kΩ 1kΩ = 103Ω…
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What is kilowatt-hour (kWh)?
Kilowatt-hour definition Kilowatt-hour is an energy unit (symbol kWh or kW⋅h). One kilowatt-hour is defined as the energy consumed by power consumption of 1kW during 1 hour: 1 kWh = 1kW ⋅ 1h One kilowatt-hour is equal to 3.6⋅106 joules: 1 kWh = 3.6⋅106 J The energy E in kilowatt-hour (kWh) is equal to the power P…
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What is kilowatt (kW)?
Kilowatt definition One kilowatt (kW) is equal to 1000 watts (W): 1kW = 1000W One kilowatt is defined as energy consumption of 1000 joules for 1 second: 1kW = 1000J / 1s One kilowatt is equal to 1000000 milliwatts: 1kW = 1000000mW Kilowatt examples Example #1 What is the power consumption in kW when energy…
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Kilovolt-amp (kVA)
kVA is kilo-volt-ampere. kVA is a unit of apparent power, which is electrical power unit. 1 kilo-volt-ampere is equal to 1000 volt-ampere: 1kVA = 1000VA 1 kilo-volt-ampere is equal to 1000 times 1 volt times 1 ampere: 1kVA = 1000⋅1V⋅1A kVA to volt-amps calculation The apparent power S in volt-amps (VA) is equal to 1000…
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Farad (F)
Farad is the unit of capacitance. It is named after Michael Faraday. The farad measures how much electric charge is accumulated on the capacitor. 1 farad is the capacitance of a capacitor that has charge of 1 coulomb when applied voltage drop of 1 volt. 1F = 1C / 1V Table of capacitance values in Farad…
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What is a decibel (dB)?
Decibel (dB) definition Decibel (Symbol: dB) is a logarithmic unit that indicates ratio or gain. Decibel is used to indicate the level of acoustic waves and electronic signals. The logarithmic scale can describe very big or very small numbers with shorter notation. The dB level can be viewed as relative gain of one level vs.…
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Decibel-Watt (dBW)
dBW definition dBW or decibel-watt is a unit of power in decibel scale, referenced to 1 watt (W). The power in decibel-watts (P(dBW)) is equal to 10 times base 10 logarithm of the power in watts (P(W)): P(dBW) = 10 ⋅ log10( P(W) / 1W) The power in watts (P(W)) is equal to 10 raised by the power in decibel-watts (P(dBW)) divided…
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