Sudarshan posted an Question
April 10, 2020 • 01:52 am 30 points
  • IIT JAM
  • Physics (PH)

Step down transformer

step down transformer , shortcut please, thank you .

2 Answer(s) Answer Now
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    Ruby negi

    correct ans is option b

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    using formula Vavg=V2/π. and we know V2/V1=n1/n2.

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    this formula is for half wave rectifier.. and for full wave rectifier, formula is Vavg=2*(V2)/π>

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    Dhairya sharma best-answer

    if high voltage appears via transmission line that high voltage can damage our apperatus and appliances,and cause short corcuit.To avoid this this problem we use step down transformers . Then decrease the voltage and then it's supplie to us.

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