In the following figure, the current I is equ | vedclass

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(D) According to Kirchhoff's Current Law $(KCL)$, the sum of currents entering a junction is equal to the sum of currents leaving the junction.Let the

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$7.5$

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(D) According to Kirchhoff's Current Law $(KCL)$, the sum of currents entering a junction is equal to the sum of currents leaving the junction.Let the current flowing between the first and second junction be $x$ and between the second and third junction be $y$.For the first junction (leftmost): $4.5 	ext{ A} + 1.7 	ext{ A} = 2.3 	ext{ A} + x$$6.2 	ext{ A} = 2.3 	ext{ A} + x \implies x = 3.9 	ext{ A}$.For the second junction (middle): $x + 3.2 	ext{ A} + 4.9 	ext{ A} = 2.6 	ext{ A} + y$$3.9 	ext{ A} + 3.2 	ext{ A} + 4.9 	ext{ A} = 2.6 	ext{ A} + y$$12.0 	ext{ A} = 2.6 	ext{ A} + y \implies y = 9.4 	ext{ A}$.For the third junction (rightmost): $y = I + 1.9 	ext{ A}$$9.4 	ext{ A} = I + 1.9 	ext{ A} \implies I = 7.5 	ext{ A}$.

In the following figure, the current $I$ is equal to: (in $\text{ A}$)

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