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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: - In common base mode of a transistor, the collector current is 5.488 mA
- A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
- A concave mirror ia placed over a beaker containing water of
- A long straight wire of radius a carries a steady current I. The current is uniformly
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Topics: Magnetic Effects of Current and Magnetism
(167)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In common base mode of a transistor, the collector current is 5.488 mA
- A condenser of 250 μF is connected in parallel to a coil of inductance of 0.16 mH
- A concave mirror ia placed over a beaker containing water of
- A long straight wire of radius a carries a steady current I. The current is uniformly
- Masses of 3 wires of same metal are in the ratio 1:2:3 and their lengths
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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