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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: - When you move from equator to pole, the value of acceleration due to gravity (g)
- According to photon theory of light which of the following physical quantities,
- The maximum particle velocity in a wave motion is half the wave velocity.
- If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
- A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When you move from equator to pole, the value of acceleration due to gravity (g)
- According to photon theory of light which of the following physical quantities,
- The maximum particle velocity in a wave motion is half the wave velocity.
- If force(F),velocity(v) and time(T) are taken as units, then the dimensions of mass are
- A galvanometer having internal resistance 10Ω requires 0.01 A for a full scale
Topics: Magnetic Effects of Current and Magnetism (167)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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