C. V. Raman is known for his work on: MCQ with Answer and Explanation
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The mass of a proton is approximately how many times the mass of an electron?
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The sound of thunder is heard after the flash of lightning because
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What is the equivalent resistance when n identical resistors, each of resistance R, are connected in series, compared to when they are connected in parallel?
Correct Answer: Option D
Explanation:
When n resistors of resistance R are in series, Rs = nR. When connected in parallel, Rp = R/n. To find the ratio, Rs / Rp = (nR) / (R/n) = n². Therefore, the series resistance is n² times the equivalent parallel resistance. This is a highly frequent numerical shortcut for exams.
When n resistors of resistance R are in series, Rs = nR. When connected in parallel, Rp = R/n. To find the ratio, Rs / Rp = (nR) / (R/n) = n². Therefore, the series resistance is n² times the equivalent parallel resistance. This is a highly frequent numerical shortcut for exams.
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