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The electric resistance of a certain wire of iron is R. If its length and radius are both doubled, then
Options
(a) The resistance will be doubled and the specific resistance will be halved
(b) The resistance will be halved and the specific resistance will remain unchanged
(c) The resistance will be halved and the specific resistance will be doubled
(d) The resistance and the specific resistance both will remain unchanged
Correct Answer:
The resistance will be halved and the specific resistance will remain unchanged
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A bullet loses 1/20 of its velocity after penetrating a plank.How many planks
- A block of mass m moving at a velocity v collides with another block of mass 2m
- The momentum of a body is increased by 20%.The percentage increases in kinetic energy
- Initial pressure and volume of a gas are P and 800cc. If the final volume is 100cc
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Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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