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A.C FUNDAMENTALS
SUBJECT : Basic Electrical Engineering
AUTHOR : M V Rao
PUBLISHED ON : 02/04/18
NUMBER OF PAGES : ( 21 Pages)
PRICE : Rs 13.65

Let us take up the case of a rectangular coil of N turns rotating in the anticlockwise direction, with an angular velocity of 􀁚 radians per second in a uniform magnetic field as shown in Fig 3.1. Let the time be measured from the instant of coincidence of the plane of the coil with the X-axis. At this instant maximum flux, 􀁉max, links with the coil. As the coil rotates, the flux linking with it changes and hence e.m.f. is induced in it. Let the coil turn through an angle 􀁔 in time t seconds, and let it assume the position as shown in Fig 3.1. Obviously 􀁔 = 􀁚t.