what happens to the peak emf of a generator if the rotational speed is doubled and the magnetic field halved?


It stays the same.
V = N*d(BA)/dt = N*w*BA = N*2w*0.5BA
(Faraday’s law, ref.)

One Response

  1. kirchwey Says:

    It stays the same.
    V = N*d(BA)/dt = N*w*BA = N*2w*0.5BA
    (Faraday’s law, ref.)
    References :
    http://hyperphysics.phy-astr.gsu.edu/HBASE/electric/farlaw.html

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