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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.
Related Questions: - Consider two particles of different masses. In which of the following situations
- The fluctuation in the input voltage of 200 V to a domestic circuit is +10V
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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 particles of different masses. In which of the following situations
- The fluctuation in the input voltage of 200 V to a domestic circuit is +10V
- A uniform electric field and uniform magnetic field are acting along the same
- Two radiations of photons energies 1 eV and 2.5 eV, successively
- If the magnetising field on a ferromagnetic material is increased, its permeability
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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