transformers

Discussion in 'Homework Help' started by terminatorstix, Feb 4, 2005.

  1. terminatorstix

    Thread Starter New Member

    Feb 4, 2005
    2
    0
    1.A coil having 90 turns is connected to 120V,60Hz source.If the effective value of the magnetizing current is 4A,calculate:

    a)the peak value of flux
    b)the peak value of the m.m.f.
    c)the inductive reactance of yhe coil
    d)the inductance of the coil.

    2.The no-load current of a transformer is 5.0A at 0.3 power factor when supplied at 240V,50Hz.The number of turns on the primary winding is 200.Calculate:

    a)the maximum value of the flux in the core
    b)the core loss
    c)the magnetising current
    d)the core loss current.
     
  2. n9xv

    Senior Member

    Jan 18, 2005
    329
    1
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