Physics · Current Electricity
A wire of a given material has length 'l' and resistance 'R'. Another wire of the same material having nine times the length and the same area of cross section will have a resistance equal to:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 13R
- 21/9 R
- 31/3 R
- 49R✓
Correct answer
9R
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