The admittance of a circuit is 0.03 - j0.04 siemen. What is the value of impedance?

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SSC JE Electrical 15 Nov 2022 Shift 2 Official Paper
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  1. Z = 12 + j16 Ω 
  2. Z = 10.12 + J11 Ω
  3. Z = 8 + j8 Ω
  4. Z = 13.12 + J12 Ω

Answer (Detailed Solution Below)

Option 1 : Z = 12 + j16 Ω 
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The correct answer is option 1):(Z = 12 + j16 Ω )

Concept:

Admittance is a measure of how easily a circuit or device will allow a current to flow. It is defined as the reciprocal of impedance,

Z = \(1 \over Y\)

Calculation:

Given

Y = 0.03 - j0.04 siemen

Z = \(1 \over Y\)

\(1 \over 0.03 - j0.04 \)

Z = 12 + j16 Ω 

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