| ⇦ |
| ⇨ |
A long straight wire of radius a carries a steady current I. The current is uniformly distributed over its cross-section. The ratio of the magnetic field B and B’ at radial distances a/2 and 2a respectively, from the axis of the wire is
Options
(a) (1/2)
(b) 1
(c) 4
(d) (1/4)
Correct Answer:
1
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
Related Questions: - What is the wavelength of light for the least energetic photon emitted
- For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
- Which one of the following is not due to total internal reflection?
- A radioactive substance emits n beta particles in the first 2 s and 0.5 n beta
- A point charge q is placed at a distance x/2 directly above the centre of a cube
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- What is the wavelength of light for the least energetic photon emitted
- For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
- Which one of the following is not due to total internal reflection?
- A radioactive substance emits n beta particles in the first 2 s and 0.5 n beta
- A point charge q is placed at a distance x/2 directly above the centre of a cube
Topics: Magnetic Effects of Current and Magnetism (167)
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