Substitution Theorem 

-10+i(4)+i(2)+4=0. -6+6i=0. i=1A. Therefore, Drop across 4-ohm res is 4V, and of 2-ohm res is 2V. The total voltage drop across both the resistors is 6V and with 4V voltage source in series gives the actual voltage source i.e; 10V. Therefore substitution-3 can be used.

Absolutely correct substitution. Since we are maintaining the all voltages

Yes, we can also substitute by this type of configuration.

Yes we can substitute

Thanks for Video ❤

Yes this substitution is correct 👍🤘

I=(10-4)/(4+2) =1A So same current flows through the circuit

Great video !

I equals 1A and V equals to 6V

Very very very helpful

It is right

Yes, substitution is correct.

Really helpful Keep making videos for us.

The circuit can be substituted by "n" number of ways na sir

yess

What are the applications?

What is network

is substitution th applicable to non linear elements ?

👍

Op bolte

like:dislike=65:0, means you are liked infinitely

1v