What Are The Basic Units Of Electricity?
Voltage/Volts (V) - The amount of work required to move an electric charge from one point to another is called voltage.
Current (I)/Amps (A) - Current is defined as the amount of charge (or electrons) passing through a circuit per unit of time.
Resistance (R) /Ohms (O) - Resistance is the opposition offered to the flow of current in a circuit.
Power (P)/Watts (W) - Power is defined as the product of the work required and the number of electrons passing through the circuit per unit time.
Other Electricity Units
Just like the standard units, other units are used to denote the values and quantities. They are:
Wh – The Watt-Hour is defined as the amount of electric energy consumed by an electric circuit over a given time duration. For example, a normal electric bulb consumes 100 watts of power per hour.
dB – A Decibel is a one-tenth unit of Bel (symbol B). It is used to represent a gain in voltage, power or current.
θ – Phase Angle. It is the difference (in degrees) between the voltage waveform and the current waveform, which have the same time period. It is a time difference that depends upon the circuit element. Its value can be “leading” or “lagging”. It is also measured in radians.
ω – Angular Frequency is used in AC circuits to represent phase relation between two waveforms.
τ – Time Constant, The Time Constant is a characteristic of an impedance circuit. It is the time taken by the output to reach 63.7% of its minimum or maximum value when subjected to step response input. It is a measure of time reaction.
SI Unit of charge
The SI unit of electric charge is the coulomb. A coulomb is defined as an ampere second.
The Units of Electric Charge are Listed in The Table Mentioned Below
Units of Electricity (Others)
There are other conventional units of measurement for electrical qualities other than watt and kilowatt, such as voltage, resistance, power, capacitance, inductance, and others. Some common electricity units are listed below.
