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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 transistor is operated in common-emitter configuration at Vᵥ = 2 V such that a change
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- An inclined plane of length 5.60m making an angle of 45⁰ with the horizontal is placed
- If the r.m.s. velocity of a gas is v, then
- A nucleus with mass number 220 initially at rest emits an α-particle. If the Q-value
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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