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A Transformer Has 50 Turns in the Primary and 100 in the Secondary. If the Primary is Connected to a 220 V Dc Supply, What Will Be the Voltage Across the Secondary? - Physics

Short Note

A transformer has 50 turns in the primary and 100 in the secondary. If the primary is connected to a 220 V DC supply, what will be the voltage across the secondary?

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A transformer works on the principle of electromagnetic induction, which is only possible in case of AC.
Hence, when DC (zero frequency) is supplied to it, the primary coil blocks the current supplied to it. Thus, the induced current in the secondary coil is zero. So, the output voltage will be zero.

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HC Verma Class 11, Class 12 Concepts of Physics Vol. 2
Chapter 17 Alternating Current
Q 19 | Page 331
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