JAMB Physics 2010 Objective — Question 43
Question 43 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2010 Objective paper, with the correct answer and a full explanation.
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43. In alternating current circuit at resonance, the angle of lead or lag is A. pi^2/4 B. 0 C. pi^2/3 D. pi^0
- A. pi^2/4
- B. 0Correct
- C. pi^2/3
- D. pi^0
Explanation
In alternating current circuit at resonance, the capacitive reactance Xc equals the inductive reactance XL and current and voltage are in phase, i.e. the angle of lead or lag is 0 degrees.
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