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Core of transformer is made up of...

Core of transformer is made up of

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Soft iron is used to make the core of a transformer because :
1. It has high permeability. As a result magnetic field lines crowd through the core and linkage of magnetic flux between the two coils will also be more.
2. It has narrow hysteresis loop and hence during magnetisation and demagnetisation, loss of energy will be equal.
The core of a transformer is laminated to minimise the loss of energy due to eddy currents.
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Knowledge Check

  • The core of transformer is laminated so that

    A
    ratio of voltages in primary and seconday coils may be increased
    B
    energy loss dut to eddy currents may be minimsed
    C
    the weight of the transformer may be reduced
    D
    residual magnetism in the core may be reduced

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