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# What are the different types of electrical power?

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## Electrical power:The rate at which electrical energy is consumed or dissipated into other forms of energy is called an electrical power.Power is denoted by $P$.The S.I unit of power is $Watt$.The mathematical representation for power is $\mathrm{P}=\mathrm{V}×\mathrm{I}$.Here, $V$ is the voltage and $I$ is the current.Types of electrical power:There are two types of electrical power such as:DC power - It is defined as the product of voltage and current and is produced by DC sources like generators, batteries, fuel cells, etc.AC power - A flow of charge that exhibits a periodic change in direction is called AC power.AC power is further bifurcated into three types as follows:Apparent power - It is the product of the root-mean-square current and the root-mean-square voltage. It is the ideal power and is represented by $S$. The mathematical expression for apparent power is $\mathrm{S}={\mathrm{V}}_{\mathrm{rms}}×{\mathrm{I}}_{\mathrm{rms}}$.Active power - It is the amount of power consumed or used within an alternating current circuit. It is the real power and is represented by $\mathrm{P}$. The mathematical expression for apparent power is $\mathrm{S}={\mathrm{V}}_{\mathrm{max}}×{\mathrm{I}}_{\mathrm{max}}\mathrm{cos\varphi }$. Here, $\mathrm{\varphi }$ is the impedance phase angle between the voltage and the current.Reactive power - Reactive power is the power developed in the circuit and is represented by Q. The mathematical expression for apparent power is $\mathrm{Q}={\mathrm{V}}_{\mathrm{rms}}×{\mathrm{I}}_{\mathrm{rms}}\mathrm{sin\varphi }$.

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