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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
- An electron in a circular orbit of radius 0.05 nm performs 10¹⁶ rev/s. The magnetic
- A potentiometer wire of length L and a resistance r are connected in series with
- A source of light is placed at a distance of 50 cm from a photocell and the stopping
- A freely suspended bar magnet aligns itself in
- Hydrogen atom in ground state is excited by a monochrmatic radiation of λ=975 Å
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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