Author: misamaliraza94
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Transistor Symbols
Transistor schematic symbols of electronic circuit – NPN, PNP, Darlington, JFET-N, JFET-P, NMOS, PMOS. Table of transistor symbols Symbol Name Description NPN Bipolar Transistor Allows current flow when high potential at base (middle) PNP Bipolar Transistor Allows current flow when low potential at base (middle) Darlington Transistor Made from 2 bipolar transistors. Has total gain…
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Diode Symbols
Diode schematic symbols of electronic circuit – Diode, LED, Zener diode, Schottky diode, photodiode, … Left – Anode, Right – Cathode. Symbol Name Description Diode Diode allows current flow in one direction only (left to right). Zener Diode Allows current flow in one direction, but also can flow in the reverse direction when above breakdown…
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Capacitor Symbols
Capacitor schematic symbols – capacitor, polarized capacitor, variable capacitor. Table of capacitor symbols Symbol Name Description Capacitor Capacitor is used to store electric charge. It acts as short circuit with AC and open circuit with DC. Capacitor Polarized Capacitor Electrolytic capacitor Polarized Capacitor Electrolytic capacitor Variable Capacitor Adjustable capacitance
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Resistor Symbols
Resistor symbols of electrical & electronic circuit diagram – resistor, potentiometer, variable resistor. Table of resistor symbols Resistor (IEEE) Resistor reduces the current flow. Resistor (IEC) Potentiometer (IEEE) Adjustable resistor – has 3 terminals. Potentiometer (IEC) Variable Resistor / Rheostat (IEEE) Adjustable resistor – has 2 terminals. Variable Resistor / Rheostat (IEC) Trimmer Resistor Preset…
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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…