First slide

CIrcuit questions

Question

In the network shown the current through $1 Ω$ resistor is

Moderate

A

$\frac{2}{3} A$
B

$\frac{9}{2} A$
C

$\frac{8}{3} A$
D

$\frac{4}{3} A$

Solution

Apply Kirchhoff's loop theorem in the loop A - B - C - A,
$- x - (2 + x) 3 + 2 (5 - x) = 0$
$\Rightarrow x = \frac{2}{3} A$

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