Magnetism » Exercise – 1
7. If B is the intensity of the earth’s magnetic field and θ is the angle of dip at a place, the vertical intensity Bv at the place is :
(a) B cos θ(b) B tan θ(c) B2 tan θ(d) B sin θ
Explanation : No answer description available for this question. Let us discuss.
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AC Fundamentals » Exercise - 113. If the phase angle θ is 450, what is the power factor ? (a) cos 450 (b) sin 450 (c) tan 450 (d) none of these