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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The induced voltage across a stationary conductor in a stationary magnetic field is

reversed in polarity
zero
decreased
increased

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Magnetism and Electromagnetism
Reciprocal of permeability is

Susceptibility
Reluctivity
Permeability
conductance

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Magnetism and Electromagnetism
Indicate which of the following material does not retain magnetism permanently.

Hardened steel
Soft iron
Stainless steel
None of the listed here

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Magnetism and Electromagnetism
Fleming's left hand rule is used to find

Direction of flux in a solenoid
Direction of force on a current carrying conductor in a magnetic field
Direction of magnetic field due to current carrying conductor
Polarity of a magnetic pole

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Magnetism and Electromagnetism
Materials subjected to rapid reversal of magnetism should have

High co-ercivity and low density
High permeability and low hysteresis loss
Large area of B-H loop
High co-ercivity and high retentivity

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Magnetism and Electromagnetism
Temporary magnets are used in

All of the listed here
Motors
Loud speakers
Generators

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MORE MCQ ON Magnetism and Electromagnetism

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