Solved Problem Based On Superposition Theorem

Solved Problem Based On Superposition Theorem

Ques.) Find the current through 10 Ω resistance in the given network by using superposition theorem?

Solution:-For finding current through 10Ω resistance by using superposition theorem, we follows same step as we discussed in previous post.

Activating ‘16V’ source at a time, other will be deactivated.
 
After deactivation of ‘16A’ current source, two individual box are seem clearly in which we can easily applying mesh analysis for finding current through 10Ω resistance when ‘16V’ voltage source is active. You can  also use nodal analysis or ohm’s law with current division rule.

I am not going to discussed how to solve a circuit through mesh analysis which I already discussed. If you want to know How to solve a circuit through mesh analysis, click here.

{Hints: -    Equations are,

  -8I₁+4I₂=-16       ··············· (1)

  4I₁-18I₂=0          ··············· (2)      }

 So, after solving this circuit, we get

 I₁ =   2.25A          &          I₂ =   0.5A

Then, I_10Ω = I₂ = 0.5A

Activating ‘16A’ source at a time, other will be deactivated.

After deactivation of ‘16V’ voltage source, we can one step reduced circuit and applying current division rule. By applying current division rule, we can easily find the value of current in 10Ω resistance.

 
By current division rule,

I₁ = 4A

I₂ = 12A

So, I_10Ω = I₁ = 4A

Now, final circuit is in which all the source will be activated. Direction of current when single source is active and other is deactivated through 10Ω resistance will be shown with their value, as shown below

At last, the current through 10Ω resistance is 3.5A and greater current has their direction as shown below.

Answer: -    I_10Ω = 3.5A

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