Hello ! my loving readers , how are you all? What do You do now? Are you worried about circuit or something? Are you thinking about difficulty of  electrical circuit? Please dont worried too much . As I have a little solution for this. Lets do something for this problem.
In the previous part we learned about Basic concept of an electrical circuit. Today we do something advance.


Today's topics are going on: 

  • DC circuit Load

  • Why inductor/capacitor does not consider at DC circuit

  •  What I should do if I see inductor/capacitor at DC circuit

DC circuit Load: 

A dc circuit has only one Load/perameter. Its Resistive Load.
Lets know what is  Resistive Load .

Resistive Load: 

 Resistive loads are converted current to heat energy at specific voltage. They are not make any magnetic field .They are operated with unity power factor. 

Example: Electric heater , incandicent  lamp etc.

If you not read my first part of Basic Electrical content , PLZ read from here 

Why inductor does not consider at DC circuit: 

We know that DC source supply the average value of current or voltage. As there have no effect of frequency. That mean's, f=0

But we know that, 

     Inductive Reactance, XL = 2*3.14fL = 2*3.14*0*L = 0  [f=0]

so you see that by the low inductive reactance is directly influenced by frequency.   So when frequncey is Zero reactance is zero.As a result its make a short circuit and there have no reactance.

For this reason inductor are not consider at DC circuit. 

 

Why capacitor does not consider at DC circuit: 

We know that,
Capacitive reactance, Xc =1/(2*3.14*fC) = 1/(2*3.14*0*C) = 1/0
Here frequency is zero.
 And we know that (1/0) means infinity. so for a large capacitive reactance  there make a Open circuit. 
For this reason capacitor are not consider at DC circuit. 

What I should do if I see inductor/capacitor at DC circuit: 

If you see an inductor at DC circuit, you should make a short line over the inductor . And then calculate circuit. Like as this image.
If you see a capacitor at DC circuit you should open it.
Like as the Image i do,



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 No more today . Stay with me and enjoy my content. 
I will explain about AC circuit load and others important.
Thank you all.
Good bye.

Written by: Apu Roy,Diploma engineer at Electrical,CEO (Techutsob.com)