| ⇦ | 
| ⇨ |
A metal wire of circular cross-section has a resistance R₁. The wire is now stretched without breaking, so that its length is doubled and the density is assumed to remain the same. If the resistance of the wire now becomes R₂, then R₂:R₁ is
Options
(a) (1:1)
(b) (1:2)
(c) (4:1)
(d) (1:4)
Correct Answer:
(4:1)
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - The radius of gyration of a solid sphere of radius r about a certain axis is r
- The wavelength of the first line of Lymasn series for hydrogen atom is equal
- The input resistance of a silicon transistor is 100 W. Base current is changed
- A car sounding a horn of frequency 100 Hz passes an observer. The ratio
- The energy band gap is maximum in
Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The radius of gyration of a solid sphere of radius r about a certain axis is r
- The wavelength of the first line of Lymasn series for hydrogen atom is equal
- The input resistance of a silicon transistor is 100 W. Base current is changed
- A car sounding a horn of frequency 100 Hz passes an observer. The ratio
- The energy band gap is maximum in
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply