Question

kon kon abhi tk online hai.aswer this question plzz.how does a transformer work.

Answer 1

A transformer needs an alternating current that will create in changing magnetic field. .. An alternating current passes through a primary coil wrapped around a soft iton core. The changing current produces a changing magnetic field. This includes an alternating voltage in the secondary coil.

Hope!!! it helps you

Answer 2

A transformer works on the principle of mutual induction. [mutual induction is the phenomenon of production of emf in a coil due to the change in the strength of current through a neighbouring coil}

in the case of an ideal transformer, there is no power loss. In that case, input power = out power .......Vin  = Vout

If we use a step-up transformer , it steps up the voltage and consequently steps down the current so that VI is the same. In the case of real transformers, there are some power losses within the transformer, however, an increase in output current through mutual induction will essentially result in a decrease in output current. ,,

Not soo gud in physics......hope it helps !!!:) :)