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प्रश्न
Name the principle on which functioning of a transformer depends.
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उत्तर
The functioning of a transformer depends on the phenomenon of electromagnetic induction.
संबंधित प्रश्न
State the principle on which transformer works.
Derive an expression for ratio of e.m.f.s and currents in terms of number of turns in primary and secondary coil.
Which coil of a step up transformer is made thicker and why?
Name the transformer used in the power transmitting station of a power plant.
Describe briefly, with the help of labelled diagram, working of a step-up transformer.
A step-up transformer converts a low voltage into high voltage. Does it not violate the principle of conservation of energy? Explain.
Explain step up and step down transformer?
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Assertion: A transfonner cannot work on D.C. supply.
Reason: D.C. changes neither in magnitude nor in direction.
The primary coil having NP turns of an ideal transformer is supplied with an alternating voltage VP. Obtain an expression for the voltage VS induced in its secondary coil having NS turns.
Assuming no flux leakage, which coils does the changing flux thread through?
