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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The retentivity of material is useful for the construction of

Transformers
Electromagnets
Permanent magnets
Non-magnetic substances

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Magnetism and Electromagnetism
Air gap has_______eluctance as compared to iron or steel path

higher
zero
lower
little

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Magnetism and Electromagnetism
The susceptibility of paramagnetic materials generally lies between

KT4 and KT8
1CT3 and 1CT7
10"2 and KT5
KT3 and 1CT6

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Magnetism and Electromagnetism
When the speed at which a conductor is moved through a magnetic field is increased, the induced voltage

decreases
remains constant
increases
reaches zero

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Magnetism and Electromagnetism
Strength of an electromagnet can be increased by

All of the listed here
Increasing current supply
Increasing the number of turns
Increasing the cross-sectional area

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Magnetism and Electromagnetism
The uniform magnetic field is

The field in which all lines of magnetic flux are parallel and equidistant
The field of a single conductor
The field of a set of parallel conductors
None of the listed here

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MORE MCQ ON Magnetism and Electromagnetism

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