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Three resistors of 3 ohm each in series give:
A1 ohm
B3 ohm
C27 ohm
D9 ohm
Answer & Solution
Correct answer: D. 9 ohm
1. Series resistances add directly.
2. Three times three is nine.
3. The equivalent resistance is 9 ohm.
_Source: NCERT Class 10 Science, Ch 12 'Electricity'_
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