WAEC Physics 2022 Objective — Question 28

Question 28 of 50 from the West African Examinations Council (WAEC) Physics 2022 Objective paper, with the correct answer and a full explanation.

In a series R-L-C circuit at resonance, impedance is A. maximum.

A. minimum
B. capacitiveCorrect
C. inductive

Explanation

At resonance in a series R-L-C circuit, the inductive and capacitive reactances cancel out, leaving impedance at its minimum value, equal to the resistance R.

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