NEET Physics Resistance and Resistivity MCQ Question
Two conductors are made of the same material and have the same length. Conductor A is solid wire of diameter 1 mm. Conductor B is hollow tube of outer diameter 2 mm and inner diameter 1 mm. The ratio of resistance RA to RB.
1 : 1
2 : 3
1 : 3
1 : 3
Correct Answer
Detailed Explanation
The resistance is inversely proportional to the cross-sectional area. The area of conductor B is larger, resulting in a lower resistance compared to A.
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