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  • In the following circuit, the magnitude of current I1, is ______ A. <img alt="" src="https://cdn.entrance360.com/media/uploads/2023/05/20/35.PNG" style="height:207px; width:200

In the following circuit, the magnitude of current I1, is ______ A.

Option: 1

1.5


Option: 2

__


Option: 3

__


Option: 4

__


Answers (1)

best_answer

 

Junction law at A,
 
\frac{x-(y+5)}{1}+\frac{x-2}{2}+\frac{x-0}{2}=0 \ldots (1)

Junction law at B,
 
\frac{y+5-x}{1}+\frac{y-0}{1}+\frac{y-2}{1}=0 ..... (2)

On solving equation (1) and Equation (2)  

\begin{aligned} & x=3 \\ & \& y=0 \end{aligned}

\begin{aligned} I_1 & =i_1+i_2 \\ I_1 & =\frac{y-0}{1}+\frac{x-0}{2} \\ & =\frac{0-0}{1}+\frac{3-0}{2} \\ I_1 & =1.5 \mathrm{~A} \end{aligned}

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