Answer
Verified
377.7k+ views
Hint:The rate at which work is done in an electric circuit is called electric power. Basically, power is nothing but the amount of work done in a specific time. Power can be of various kinds depending upon the nature of current.
Complete answer:
Types of power:
DC POWER:- The dc power is defined as a product of voltage and current. It is produced by the fuel cell, battery and generator.
AC POWER:-It is further classified into three types apparent, active and reactive power.
Apparent power:- The apparent power is the useless power or idle power. It is represented by the symbol S, and their SI unit is volt-amp.
S=${{V}_{rms}}{{I}_{rms}}$
where, $S$ is apparent power, ${{V}_{rms}}$ is the RMS voltage and ${{I}_{rms}}$ is the RMS current.
Active power:- The active power (P) is the real power which is dissipated in the circuit resistance.
$P={{V}_{\max }}{{I}_{mav}}C\cos \phi $
where, $P$ is the real power in watts, ${{V}_{rms}}$ is the RMS voltage, ${{I}_{rms}}$ is the RMS current and $\phi $ is the impedance phase angle between voltage and current.
Reactive power:- The power developed in the circuit reactance is called reactive power (Q). It is measured in volt-ampere reactive.
Q=${{V}_{rms}}{{I}_{rms}}\sin \varphi $
where, $Q$ is the reactive power in watts, ${{V}_{rms}}$ is the RMS voltage, ${{I}_{rms}}$ is the RMS current and $\varphi $ is impedance angle of phase between voltage and current.
Note:The relation between the apparent, active and reactive power is ${{S}^{2}}={{Q}^{2}}+{{P}^{2}}$. The ratio of the real to the apparent power is called power factor, and their value lies between $0$ and $1$ . Keep in mind the small difference between the different types of power.
Complete answer:
Types of power:
DC POWER:- The dc power is defined as a product of voltage and current. It is produced by the fuel cell, battery and generator.
AC POWER:-It is further classified into three types apparent, active and reactive power.
Apparent power:- The apparent power is the useless power or idle power. It is represented by the symbol S, and their SI unit is volt-amp.
S=${{V}_{rms}}{{I}_{rms}}$
where, $S$ is apparent power, ${{V}_{rms}}$ is the RMS voltage and ${{I}_{rms}}$ is the RMS current.
Active power:- The active power (P) is the real power which is dissipated in the circuit resistance.
$P={{V}_{\max }}{{I}_{mav}}C\cos \phi $
where, $P$ is the real power in watts, ${{V}_{rms}}$ is the RMS voltage, ${{I}_{rms}}$ is the RMS current and $\phi $ is the impedance phase angle between voltage and current.
Reactive power:- The power developed in the circuit reactance is called reactive power (Q). It is measured in volt-ampere reactive.
Q=${{V}_{rms}}{{I}_{rms}}\sin \varphi $
where, $Q$ is the reactive power in watts, ${{V}_{rms}}$ is the RMS voltage, ${{I}_{rms}}$ is the RMS current and $\varphi $ is impedance angle of phase between voltage and current.
Note:The relation between the apparent, active and reactive power is ${{S}^{2}}={{Q}^{2}}+{{P}^{2}}$. The ratio of the real to the apparent power is called power factor, and their value lies between $0$ and $1$ . Keep in mind the small difference between the different types of power.
Recently Updated Pages
How many sigma and pi bonds are present in HCequiv class 11 chemistry CBSE
Mark and label the given geoinformation on the outline class 11 social science CBSE
When people say No pun intended what does that mea class 8 english CBSE
Name the states which share their boundary with Indias class 9 social science CBSE
Give an account of the Northern Plains of India class 9 social science CBSE
Change the following sentences into negative and interrogative class 10 english CBSE
Trending doubts
Fill the blanks with the suitable prepositions 1 The class 9 english CBSE
Which are the Top 10 Largest Countries of the World?
Give 10 examples for herbs , shrubs , climbers , creepers
Difference Between Plant Cell and Animal Cell
Difference between Prokaryotic cell and Eukaryotic class 11 biology CBSE
The Equation xxx + 2 is Satisfied when x is Equal to Class 10 Maths
Change the following sentences into negative and interrogative class 10 english CBSE
How do you graph the function fx 4x class 9 maths CBSE
Write a letter to the principal requesting him to grant class 10 english CBSE