Q.
Soft iron is used as core in transformer because. It has
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a
High retentivity, high permeability and low coercivity
b
Narrow hysteresis loop, high permeability, high coercivity
c
Wide hysteresis loop, high retentivity and high coercivity
d
Narrow hysteresis loop, low retentivity and low coercivity
answer is D.
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Detailed Solution
for temporary magnet energy loss depends on area of the hysteresis loop low coercivity assures easy demagnetization
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