I have to find voltage across R5 using superposition theorem but the problem is that I have a voltage difference of 4.16V,
Solution:-
Shorting battery VS1
R34 =8/3Ω =2.67Ω (Solved R3 & R4 in parallel)
R234 =41/3Ω =13.67Ω (Solved R34 & R2 in series)
R1234 =205/56Ω =3.66Ω (Solved R234 & R1 in parallel)
Using Voltage Divider Formula on R5
(1)V5= 6.56V (Voltage when VS1 is shorted)
R34 =8/3Ω =2.67Ω (Solved R3 & R4 in parallel)
R234 =41/3Ω =13.67Ω (Solved R34 & R2 in series)
R2345 =287/62Ω =4.62Ω (Solved R234 & R5 in parallel)
Using Voltage Divider Formula on R2345
Therefore, (2)V5=V2345= 2.40V(Voltage when VS2 is shorted)
Since the flow of voltage is opposite on R5 the resultant voltage(V5) can be obtained by taking the difference of the voltages obtained by shorting the batteries.
Resultant V5 =(1)V5 – (2)V5
Resultant V5 = 6.56 – 2.40
Resultant V5 = 4.16V
x————————————————————x——————————————————————–x
According to my solution after taking the difference at the end I'm obtaining a value of 4.16V of V5 but according to the given answer it says that the answer is 2.40V. I want to know that if there is something wrong with my solution or the answer provided is wrong?.
Best Answer
It seems as though you may need to prove something, given that your answer is correct and apparently a given "correct" answer is actually wrong.
To achieve a counter-proof, it's best to use a series of simple and unarguable transitions of the circuit that lead inevitably to the answer you have. This means using very basic steps, one at a time; steps that anyone can follow and will not be able to argue with:
simulate this circuit – Schematic created using CircuitLab
Assuming you can get whomever the individual is that you need to convince to read this, have them follow along with the above steps:
Once you have arrived at step 4, the rest is fairly easy.
$$\begin{align*} I_\text{TOTAL} &=\frac{10\:\text{V}-V_\text{TH}}{R_5+R_\text{TH}}\\\\ V_{R_5}&=I_\text{TOTAL}\cdot R_5\\\\ &=\left(10\:\text{V}-V_\text{TH}\right)\cdot\frac{R_5}{R_5+R_\text{TH}}\\\\ &= 4.16237\approx 4.16\:\text{V} \end{align*}$$
When trying to convince someone, it's better to walk them through a very simple and easy to follow process and to avoid using general, powerful and abstract tools to get there (which may not be as crystal clear in their minds.) Just keep it very basic and I think you will get them to admit their error. It's inescapable.