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Reactance as Imaginary Part of Impedance

Which of the following represents the imaginary part of an impedance?

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Answer & Explanation

Correct AnswerD. Reactance

Quick Explanation

Impedance is written Z=R+jX. Its real part R is resistance and its imaginary part X is reactance. Conductance and susceptance belong to admittance Y=G+jB.

Formula / Key Relation

Z=R+jX

Reactance as Imaginary Part of Impedance explanatory diagram

Detailed Explanation

Correct Answer

D — Reactance

Concept and Reasoning

Impedance is written Z=R+jX. Its real part R is resistance and its imaginary part X is reactance. Conductance and susceptance belong to admittance Y=G+jB.

Calculation / Key Relation

Z=R+jX

Exam Takeaway

Impedance → R and X; admittance → G and B.

Common Mistake

Do not confuse reactance X with susceptance B.

Quick Trick

Impedance → R and X; admittance → G and B.

Common Mistake

Do not confuse reactance X with susceptance B.

Exam Tip

Impedance → R and X; admittance → G and B.

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QP-112-202425.pdf2024Q. 41

Reactance as Imaginary Part of Impedance

Quick Explanation

Formula / Key Relation

Detailed Explanation

Correct Answer

Concept and Reasoning

Calculation / Key Relation

Exam Takeaway

Common Mistake

Quick Trick

Common Mistake

Exam Tip

Previous Exam Appearances

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