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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: - If vectors A=cos wti + sin wtj and B= cos wt/2 i + sin wt/2 j are functions of time,
- A car of mass m is moving on a level circular track of radius R
- In a circuit, the current lags behind the voltage by a phase difference of π/2.
- Out of the following options which one can be used to produce a propagating
- Temperature is a measurement of coldness or hotness of an object.
Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If vectors A=cos wti + sin wtj and B= cos wt/2 i + sin wt/2 j are functions of time,
- A car of mass m is moving on a level circular track of radius R
- In a circuit, the current lags behind the voltage by a phase difference of π/2.
- Out of the following options which one can be used to produce a propagating
- Temperature is a measurement of coldness or hotness of an object.
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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