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Transformer

Transformers ...

Question

Transformers are used to convert high voltages to the low voltages only.

A

True

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B

False

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Q. A transformer is designed to convert an AC voltage of 220 V to an AC voltage of 12 V. If the input terminals are connected to a DC voltage of 220 V, the transformer usually burns. Explain.

Q. Assertion :A step-up transformer changes a low voltage into a high voltage Reason: This violate the law of conservation of energy

Q. Statement (A ) : In high current low voltage windings of a transformer thick wire is used to minimize energy loss due to heat produced
Statement ( B ) : The core of any transformer is laminated so as to reduce the energy loss due to eddy currents

Q. Statement A: Step up transformer converts low voltage, high current to high voltage, low current.
Statement B: Transformer works on both ac and dc.

Q. A step up transformer converts a low voltage to high voltage. Does it not violate the principle of conservation of energy? Explain.

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