JAMB Physics 2025 Objective — Question 29
Question 29 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2025 Objective paper, with the correct answer and a full explanation.
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An AC generator produces maximum emf 100 V. The r.m.s. value is:
- A. 70.7 VCorrect
- B. 50 V
- C. 141.4 V
- D. 100 V
Explanation
V_rms=V_max/√2=100/√2≈70.7 V.
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