Physics · Factors Affecting Resistance
When the radius of a cylindrical metallic wire is doubled while its length remains constant, what happens to its electrical resistance R?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1It becomes 2R
- 2It becomes 4R
- 3It becomes R4✓
- 4It remains R
Correct answer
It becomes R4
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