Post Utme Unn 2021 Physics Question 23

Practice objective / multiple choice question 23 from the 2021 Post Utme Unn Physics examination.

Post Utme Unn 2021 Physics Objective / Multiple Choice

Question 23 POST_UTME_UNN • 2021 • PHYSICS • objective

A circuit consists of a resistor $R$, an inductor $L$, and a capacitor $C$ connected in series. The circuit is driven by an AC voltage source with a frequency $f$. If the inductive reac\tance $X_L = 10\,\Omega$ and the capacitive reac\tance $X_C = 5\,\Omega$, what is the impedance $Z$ of the circuit?

A. \sqrt{R^2 + $ X_L + X_C $^2}

Correct Answer B. \sqrt{R^2 + $ X_L - X_C $^2}

C. \sqrt{R^2 - $ X_L - X_C $^2}

D. \sqrt{R^2 + $ X_L + X_C $^2}

Correct Answer

Correct Option:

\sqrt{R^2 + $ X_L - X_C $^2}

This is Post Utme Unn 2021 Physics Question 23. It is one of the objective questions from the 2021 Post Utme Unn Physics examination.

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