JAMB Physics 2017 Objective — Question 35
Question 35 of 40 from the Joint Admissions and Matriculation Board (JAMB) Physics 2017 Objective paper, with the correct answer and a full explanation.
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From the diagram (18Ω, 12Ω and 6Ω resistors in parallel, connected to a 12V source), calculate the total current in the circuit.
- A. A. 5.0A
- B. B. 3.7ACorrect
- C. C. 4.5A
- D. D. 4.0A
Explanation
1/R = 1/18+1/12+1/6 = 11/36, R≈3.27Ω. I=V/R=12/3.27≈3.7A.
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