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20 February, 06:06

The voltage leaving the secondary coil of a transformer is equal to 240 V. The secondary coil is wrapped 8 times around the core. The primary coil is wrapped 25 times around the core. What is the initial voltage at the primary coil?

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Answers (2)
  1. 20 February, 07:52
    0
    The initial voltage at the primary = 750 V

    Explanation:

    for a transformer

    Es / Ep = Ns / Np

    Es = secondary voltage = 240 V

    Ep = primary voltage

    Ns = number of turns in the secondary=8

    Np = Number of turns in the primary=25

    so 240/Ep=8/25

    Ep=750 V
  2. 20 February, 10:03
    0
    750 0n edge ...
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