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In this lecture of transformer, characteristics of an ideal transformer is being discussed. An ideal transformer is theoratical concept. So, it is very important to know the characteristics of an ideal transformer.


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#electricaltransformer
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#engineering
An ideal transformer comprises two resistance less coils embracing a common magnetic circuit of infinite permeability and zero core loss . The coils produce no leakage flux: i.e. the whole flux of the magnetic circuit completely links both coils. When the primary coil is energised by an alternating voltage V1, a corresponding flux of peak value Φm is developed, inducing in the N1-turn primary coil an e.m.f. E1 = V1. At the same time an e.m.f. E2 is induced in the N2-turn secondary coil. If the terminals of the secondary coil are connected to a load taking a current I2, the primary coil must accept a balancing current I1 such that I1N1 = I2N2, as the core requires zero excitation.
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#circuitanalysis
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#electromagneticinduction
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