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The ratio arms P and Q of a post office box contain which set of resistance values?
A10, 100 and 1000 ohm
B1, 2 and 5 ohm
C100, 500 and 2000 ohm
D5, 50 and 500 ohm
Answer & Solution
Correct answer: A. 10, 100 and 1000 ohm
Each ratio arm offers 10 ohm, 100 ohm and 1000 ohm so that convenient ratios can be chosen.
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