Engineering


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  • Ex: The angle of dip at a place is 60°. At this place the total intensity of earth's magnetic field is 0.64 units. The horizontal intensity of earth's magnetic field at this place is
    A) 1.28 units                               
    B) 0.64 units
    C) 0.16 units                               
    D) 0.32 units
    Trick: BH = Bcosφ = 0.64 × cos60o = 0.64×12 = 0.32units
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