Ideal Transformer on No load

Consider an ideal transformer on no load as shown in the figure. The supply voltage is V1 and as it is an no load the secondary current  I2 = 0. The primary draws a current I1 which is just necessary to produce flux in the core. As it is magnetizing the core, it is called magnetizing current denoted … Continue reading Ideal Transformer on No load

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Why d.c. can not be used on Transformer?

    The d.c, supply can not be used for the transformers. The transformer works on the principle of mutual induction, for which current  in one coil  must change  uniformly. If d.c. supply is given, the current will not change due to constant supply and transformer will not work. Practically winding resistance is very small. … Continue reading Why d.c. can not be used on Transformer?