| ⇦ | 
| ⇨ |
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: - Two identical capacitors are first connected in series and then in parallel.
- Eight drops of a liquid of density ρ and each of radius a are falling through air
- The current in the windings of a toroid is 2.0 A. There are 400 turns
- The surface tension of soap solution is 0.03 N/m. The work done in blowing to form a soap
- A disc of moment of inertia (9.8/π²) kg m² is rotating at 600 rpm. If the frequency
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Two identical capacitors are first connected in series and then in parallel.
- Eight drops of a liquid of density ρ and each of radius a are falling through air
- The current in the windings of a toroid is 2.0 A. There are 400 turns
- The surface tension of soap solution is 0.03 N/m. The work done in blowing to form a soap
- A disc of moment of inertia (9.8/π²) kg m² is rotating at 600 rpm. If the frequency
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