| ⇦ | 
| ⇨ |
If r be the distance of a point on the axis of a magnetic dipole from its centre then the magnetic field at such a point is proportional to
Options
(a) 1/r
(b) 1/r²
(c) 1/r³
(d) none of these
Correct Answer:
1/r³
Explanation:
As we know that, the magnetic field at a point due to the dipole is given by B = (μ₀ / 4π) × (M / r³) × √(1 + 3 cos² θ) where, M is magnetic dipole moment. Then, B ∝ 1 / r³
Related Questions: - A certain number of spherical dropes of a liquid of radius r coalesce to form a single
- When an input signal 1 is applied to a NOT gate, then its output is
- In atom bomb, the reaction which occurs is
- During negative β-decay
- The potential energy of a simple harmonic oscillator when the particle is half way
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A certain number of spherical dropes of a liquid of radius r coalesce to form a single
- When an input signal 1 is applied to a NOT gate, then its output is
- In atom bomb, the reaction which occurs is
- During negative β-decay
- The potential energy of a simple harmonic oscillator when the particle is half way
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