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A 1m long wire of diameter 0.31 mm has a resistance of 4.2Ω. If it is replaced by another wire of same material of length 1.5m and diameter 0.155 mm, then the resistance of wire is
Options
(a) 25.2Ω
(b) 0.6Ω
(c) 26.7Ω
(d) 0.8Ω
Correct Answer:
25.2Ω
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
- 24 cells of emf 1.5 V each having internal resistance of 1 ohm are connected
- The depletion layer in the p-n junction region is caused by
- The necessary condition in making of a junction transistor
- A short linear object of length L lies on the axis of a spherical mirror of focal
- If a carnot engine is working with source temperature at 227⁰C and sink
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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