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Magnetic Circuit

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

Conductance
Conductivity
Resistance
Resistivity

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Magnetic Circuit
The unit of retentivity is

Ampere turns
Weber/sq. m
Weber
Ampere turn/meter

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Magnetic Circuit
The rate of rise of current through an inductive coil is maximum

Near the final maximum value of current
At 63.2% of its maximum steady value
After one time constant
At the start of the current flow

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Magnetic Circuit
Laminated cores, in electrical machines, are used to reduce

Copper loss
Eddy current loss
Hysteresis loss
All of the listed here

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Magnetic Circuit
Those magnetic materials are best suited for making armature and transformer cores which have ________permeability and _________hysteresis loss.

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

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Magnetic Circuit
The unit of magnetic flux is

Henry
Ampere/metre
Ampere-turn/weber
Weber

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MORE MCQ ON Magnetic Circuit

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