| ⇦ | 
| ⇨ |
The effective length of magnet is 31.4 cm and its pole strength is 0.8Am. The magnetic moment, if it is bent in the form of a semicircle is …….. A-m²
Options
(a) 1.2
(b) 1.6
(c) 0.16
(d) 0.12
Correct Answer:
0.16
Explanation:
The effective length of magnet = 31.4 cm
Pole strength, m = 0.8 Am
Length of semi-circle = π (D / 2) = l
where, D = diameter of circle
D = 2l / π = (2 × 31.4 × 10²) / 3.14 = 20 × 10⁻² m
Now, the magnetic moment = ml = mD = 0.8 × 20 × 10⁻² m
= 16 × 10⁻² = 0.16 A-m²
Related Questions: - In an interference experiment, third bright fringe is obtained at a point
- Magnetism of a magnet is due to
- If λ₁ and λ₂ are the wavelengths of the first members of the Lyman and Paschen
- The work function of sodium is 2.3 eV. The threshold wavelength of sodium will be
- Two parallel beams of positron moving in the same direction will
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In an interference experiment, third bright fringe is obtained at a point
- Magnetism of a magnet is due to
- If λ₁ and λ₂ are the wavelengths of the first members of the Lyman and Paschen
- The work function of sodium is 2.3 eV. The threshold wavelength of sodium will be
- Two parallel beams of positron moving in the same direction will
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