JAMB Physics 2025 Objective — Question 26
Question 26 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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The power dissipated in a 4 Ω resistor carrying 3 A is:
- A. 9 W
- B. 12 W
- C. 18 W
- D. 36 WCorrect
Explanation
P=I²R=9×4=36 W.
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