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Magnetic Circuit

Magnetic Circuit
Conductance is analogous to

Flux
Permeance
Reluctance
Inductance

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Magnetic Circuit
Those materials are well suited for making permanent magnets which have ________ retentivity and ________ coercivity.

High, high
High, low
Low, low
Low, high

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Magnetic Circuit
Permeability in a magnetic circuit corresponds to_________ in an electric circuit.

Resistance
Resistivity
Conductivity
Conductance

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Magnetic Circuit
Hard steel is suitable for making permanent magnets because

Its mechanical strength is high
It has good residual magnetism
Its hysteresis loop has large area
Its mechanical strength is low

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Magnetic Circuit
The property of a material which opposes the creation of magnetic flux in it is known as

Reluctivity
Permeance
Magneto-motive force
Reluctance

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Magnetic Circuit
An air gap is usually inserted in magnetic circuits to

Increase the flux
Prevent saturation
Increase m.m.f.
None of the listed here

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