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If a wire is stretched to four times its length, then the specific resistance of the wire will
Options
(a) become 4 times
(b) become 1/4 times
(c) become 16 times
(d) remain the same
Correct Answer:
remain the same
Explanation:
Specific resistance does not depend upon length.
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Consider two concentric spherical metal shells of radii r₁ and r₂( r₂>r₁). If the outer
- The radius of gyration of a solid sphere of radius r about a certain axis is r
- In R-L-C series circuit, the potential differences across each element is 20 V.
- A scooter is going round a circular road of radius 100 m at a speed of 10m/s
- Two nuclei have their mass numbers into the ratio of 1:3
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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