GATE Electrical Engineering (EE) 2021 Solved Papers

Question : 12 of 65

Marks: +1, -0

In the given circuit, the value of capacitor C that makes current I = 0 is _______ μF.

Solution:

To make I = 0,

Z = ∞

[j 5 ||(j 5-j X_{C})]=∞

So,

{j} 10- {j} {X}_{ {C}}=0

{X}_{ {C}}=10

\;{1}/{ω C}=10

C=\;{1}/{10 × 5 × 1000}

{C}=20 µ {F}

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