Post-UTME Physics 2008 Objective — Question 4
Question 4 of 10 from the Post-UTME Screening (Post-UTME) Physics 2008 Objective paper, with the correct answer and a full explanation.
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Two resistors R1 and R2 are connected in parallel, R2 being greater than R1. The combined resistance is
- A. less than R1
- B. greater than R2
- C. the sum of R1 and R2
- D. the difference of R1 and R2
Explanation
For resistors in parallel, the combined resistance is always less than the smallest individual resistance, i.e. less than R1 (option A); the source key marks 'greater than R2' (option B), which appears to be a physics error.
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