| ⇦ | 
| ⇨ |
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: - A capacitor of 10 µF charged upto 250 volt is connected in parallel with another
- The barrier potential of a p-n junction depends on
- The root mean square speed of oxygen molecule (O₂) at a certain temperature is v.
- The workdone in turning a magnet of magnetic moment M by an angle of 90⁰ from the magnetic
- An electric lamp is connected to 220 V, 50 Hz supply. Then the peak voltge is
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A capacitor of 10 µF charged upto 250 volt is connected in parallel with another
- The barrier potential of a p-n junction depends on
- The root mean square speed of oxygen molecule (O₂) at a certain temperature is v.
- The workdone in turning a magnet of magnetic moment M by an angle of 90⁰ from the magnetic
- An electric lamp is connected to 220 V, 50 Hz supply. Then the peak voltge is
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