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Two resistance are given as R 1 = (10 ± 0.5) Ω and R 2 = (15 ± 0.5) Ω . The percentage error in the measurement of equivalent resistance when they are connected in parallel is

1. 6.33
2. 2.33
3. 5.33
4. 4.33

Correct answer: 4.33

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