How do the input and output powers in a transformer compare? State the assumption made.

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Solution

A transformer is a device by which the amplitude of an alternating e.m.f can be increased or decreased.
For an ideal transformer, when there is no loss of energy, the output power is equal to the input power that is power in secondary coil = power in primary coil.

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How do the input and output powers in a transformer compare? State the assumption made.

A transformer is a device by which the amplitude of an alternating e.m.f can be increased or decreased. For an ideal transformer, when there is no loss of energy, the output power is equal to the input power that is power in secondary coil = power in primary coil.

A transformer is a device by which the amplitude of an alternating e.m.f can be increased or decreased.
For an ideal transformer, when there is no loss of energy, the output power is equal to the input power that is power in secondary coil = power in primary coil.