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Magnetism and Electromagnetism

Magnetism and Electromagnetism
The susceptibility of paramagnetic materials generally lies between

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

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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

reaches zero
increases
decreases
remains constant

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

Polarity of a magnetic pole
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

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Magnetism and Electromagnetism
A keeper is used to

Restore lost flux
Provide a closed path for flux
Change the direction of magnetic lines
Amplify flux

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Magnetism and Electromagnetism
The change of cross-sectional area of conductor in magnetic field will affect

both of the listed here
resistance of conductor
None of these
reluctance of conductor

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

zero
lower
little
higher

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