Step into the electrifying realm of Electrical Units Online. From the spark of volts to the resistance of ohms, we demystify the complex tapestry of electrical measurements. A haven for learners and experts, we light the way to understanding every unit!
| Unit Name | Unit Symbol | Quantity |
|---|---|---|
| Ampere (amp) | A | Electric current (I) |
| Volt | V |
Voltage (V, E) Electromotive force (E) Potential difference (Δφ) |
| Ohm | Ω | Resistance (R) |
| Watt | W | Electric power (P) |
| Decibel-milliwatt | dBm | Electric power (P) |
| Decibel-Watt | dBW | Electric power (P) |
| Volt-Ampere-Reactive | var | Reactive power (Q) |
| Volt-Ampere | VA | Apparent power (S) |
| Farad | F | Capacitance (C) |
| Henry | H | Inductance (L) |
| siemens / mho | S | Conductance (G) Admittance (Y) |
| Coulomb | C | Electric charge (Q) |
| Ampere-hour | Ah | Electric charge (Q) |
| Joule | J | Energy (E) |
| Kilowatt-hour | kWh | Energy (E) |
| Electron-volt | eV | Energy (E) |
| Ohm-meter | Ω∙m | Resistivity ( ρ) |
| siemens per meter | S/m | Conductivity ( σ) |
| Volts per meter | V/m | Electric field (E) |
| Newtons per coulomb | N/C | Electric field (E) |
| Volt-meter | V⋅m | Electric flux (Φ e) |
| Tesla | T | Magnetic field (B) |
| Gauss | G | Magnetic field (B) |
| Weber | Wb | Magnetic flux (Φ m) |
| Hertz | Hz | Frequency (f) |
| Seconds | s | Time (t) |
| Meter / metre | m | Length (l) |
| Square-meter | m 2 | Area (A) |
| Decibel | dB | |
| Parts per million | ppm |
| Prefix
|
Prefix Symbol |
Prefix factor |
Example |
|---|---|---|---|
| pico | p | 10 -12 | 1pF = 10 -12 F |
| nano | n | 10 -9 | 1nF = 10 -9 F |
| micro | μ | 10 -6 | 1μA = 10 -6 A |
| milli | m | 10 -3 | 1mA = 10 -3 A |
| kilo | k | 10 3 | 1kΩ = 1000Ω |
| mega | M | 10 6 | 1MHz = 10 6 Hz |
| giga | G | 10 9 | 1GHz = 10 9 Hz |
Understanding Electrical Units
Volt (V):
A volt signifies voltage. It's defined as the energy usage of 1 joule when 1 coulomb of electric charge circulates within a circuit. 1V = 1J/C
Ampere (A):
Ampere measures electrical current, quantifying the electrical charge flowing in a circuit every second. 1A = 1C/s
Ohm (Ω):
Ohm represents electrical resistance, calculated as: 1Ω = 1V/1A
Watt (W):
Watt evaluates electric power, denoting the energy consumption rate. 1W = 1J/s = 1V ⋅ 1A
Decibel-milliwatt (dBm):
dBm is a power unit, gauged on a logarithmic scale, anchored to 1mW. 10dBm = 10 ⋅ log10(10mW/1mW)
Decibel-Watt (dBW):
dBW also measures electric power but references 1W. 10dBW = 10 ⋅ log10(10W/1W)
Farad (F):
Farad assesses capacitance, indicating electric charge storage per volt. 1F = 1C/1V
Henry (H):
Henry is synonymous with inductance. 1H = 1Wb/1A
Siemens (S):
Siemens gauges conductance, essentially being the antithesis of resistance. 1S = 1/1Ω
Coulomb (C):
Coulomb stands for electric charge, equivalent to 6.238792×10^18 electron charges.
Ampere-hour (Ah):
This unit denotes electric charge, signifying the charge flowing in a circuit with a 1-ampere current over 1 hour. 1Ah = 1A ⋅ 1 hour = 3600C
Tesla (T):
Tesla quantifies the magnetic field. 1T = 1Wb/1m^2
Weber (Wb):
Weber stands for magnetic flux. 1Wb = 1V ⋅ 1s
Joule (J):
Joule is an energy measure. 1J = 1 kg ⋅ m^2/s^2
Kilowatt-hour (kWh):
This unit measures energy. 1kWh = 1kW ⋅ 1h = 1000W ⋅ 1h
Kilovolt-amps (kVA):
Kilovolt-amps quantify power. 1kVA = 1kV ⋅ 1A
Hertz (Hz):
Hertz determines frequency, measuring cycle counts each second. 1 Hz = 1 cycle/s
Electrical Units Online provides a comprehensive overview of various electrical units like volts, amps, ohms, and watts. It serves as a reference for their definitions, relationships, and applications in real-world scenarios.