Find Geq in the following network.

F6 Madhuri Engineering 30.06.2022 D2

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NHPC JE Electrical 5 April 2022 (Shift 1) Official Paper
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  1. 6 S
  2. 4 S
  3. 8 S
  4. 10 S

Answer (Detailed Solution Below)

Option 2 : 4 S
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Detailed Solution

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Concept:

Conductance in Series:

\(\frac{1}{G_s}=\frac{1}{G_1}+\frac{1}{G_2}+\frac{1}{G_3}+......\frac{1}{G_n}\)

Conductance in Parallel:

GP = G1 + G2 + G3 + ..... Gn

Application:

Given circuit:

F2 Madhuri Engineering 04.07.2022 D3

Here, 8 S is connected parallel with 4 S and, 6 S is connected series with 12 S

Hence, an equivalent circuit can be drawn as,

F2 Madhuri Engineering 04.07.2022 D4

Now, 2 S is connected parallel with 4 S, equivalent circuit can be drawn as,

F2 Madhuri Engineering 04.07.2022 D5

Hence,

\(\frac{1}{G_{eq}}=\frac{1}{12}+\frac{1}{6}=4\ S\)

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