ch30-p017 - 17. First we write B = BA cos . We note that...

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17. First we write Φ B = BA cos θ . We note that the angular position of the rotating coil is measured from some reference line or plane, and we are implicitly making such a choice by writing the magnetic flux as BA cos (as opposed to, say, BA sin ). Since the coil is rotating steadily, increases linearly with time. Thus, = ω t if is understood to be in radians (here, = 2 π f is the angular velocity of the coil in radians per second, and
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This note was uploaded on 06/03/2011 for the course PHY 2049 taught by Professor Any during the Spring '08 term at University of Florida.

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