| ⇦ | 
| ⇨ |
If the magnetising field on a ferromagnetic material is increased, its permeability
Options
(a) decrease
(b) increase
(c) is unaffected
(d) may be increase or decrease
Correct Answer:
decrease
Explanation:
Magnetic permeability of substance, μ = B / H ⇒ μ ∝ 1/H
where, H is the magnetising or magnetic field strength.
So, the magnetising field of a ferromagnetic material is increasing thus its, permeability decreased.
Related Questions: - A lift is moving down with acceleration a.A man in the lift drops a ball
- For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)
- If 20% of a radiactive element decays in 10 days, then amount of original material left
- In an a.c circuit the e.m.f. (e) and the current (i) at any instant are given
- The density of ice is 0.9 g/cc and that of sea water is 1.1 g/cc
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A lift is moving down with acceleration a.A man in the lift drops a ball
- For the action of a common Base (CB) transistor, (E=emitter, B= base, C= collector)
- If 20% of a radiactive element decays in 10 days, then amount of original material left
- In an a.c circuit the e.m.f. (e) and the current (i) at any instant are given
- The density of ice is 0.9 g/cc and that of sea water is 1.1 g/cc
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