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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
- A cockroach is moving with a velocity v in anticlockwise direction on the rim
- According to photon theory of light which of the following physical quantities,
- The moment of inertia of a rod about an axis through its centre and perpendicular
- A very small circular loop of radius a is initially (at t=0) coplanar and concentric
- A solid sphere of mass M, radius R and having moment of inertia about an axis passing
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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