First slide

Kcl

Question

In the given circuit if I₁ and I₂ are the currents in resistors of resistances R₁ and R₂, respectively, then

Moderate

A

$I_{1} = 3 A, I_{2} = 2 A$
B

$I_{1} = 0, I_{2} = 2 A$
C

$I_{1} = 2 A, I_{2} = 2 A$
D

$I_{1} = 2 A and I_{2}$ can't be determined with given data

Solution

Since 3 A is in upper part of circuit. Therefore out of 5 A coming in lower part, 3 A has to go to the upper pert, out of which some part will flow through R₂ and rest through the unknown resistance.
$∴$ 2 A will go through R₁.

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