In the following electrical network, the value of I is (a) 1.5 A (b) 3.0 A (c) 3.4 A (d) 2.5 A

Answer: (c). Apply the junction rule at each junction along the wire. First junction: 1 + 2 + 3 = 6 A flows on. Then 6 - 1.2 = 4.8 A, 4.8 + 0.8 = 5.6 A, 5.6 - 0.5 = 5.1 A. I = 5.1 - 1.7 = 3.4 A So the answer is (c) 3.4 A.

In the following electrical network, the value of I is | MHT CET 2021 (24 Sep, Shift 2)

Q121MHT CET 2021 · 24 SEP · SHIFT 2Medium

Kirchhoff's Laws & Measuring Instruments

In the following electrical network, the value of I is

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Answer: (c)

Apply the junction rule at each junction along the wire.
First junction: $1 + 2 + 3 = 6\text{ A}$ flows on.
Then $6 - 1.2 = 4.8\text{ A}$ , $4.8 + 0.8 = 5.6\text{ A}$ , $5.6 - 0.5 = 5.1\text{ A}$ .
$I = 5.1 - 1.7 = 3.4\text{ A}$
So the answer is (c) 3.4 A.

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