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Core of electromagnets are made of ferromagnetic material which has
Options
(a) low permeability and high retentivity
(b) high permeability and low retentivity
(c) low permeability and low retentivity
(d) high premeability and high retentivity
Correct Answer:
high permeability and low retentivity
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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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
- The induced emf in a coil of 10 H inductance in which current varies
- A body of mass m=3.513 kg is moving along the x-axis with a speed of 5 m/s
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
- In the reaction ₉₂U²³⁴→₈₇Y²²², how many α-particle and β-particles are emitted
- The displacement of a particle along the x-axis is given by x = a sin² ?t
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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