(10%) Problem 10: A bicycle generator rotates at 104 rad/s, producing an 19.5 V
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Question
(10%) Problem 10: A bicycle generator rotates at 104 rad/s, producing an 19.5 V peak emf. It has a 1.00 by 3.00 cm rectangular coil in a 0.52 T field. Randomized Variables Eo 19.5 V 104 rad/s. B 0.52 T A 100% Part (a) How many turns are in the coil? Grade Summary 0% Deductions Potential 100% Submissions sino cos0 tan0 D 7 8 9 Attempts remaining 3 (30% per attempt) cotano asi acos0 4 5 6 detailed view atan0 acotan0 sinh0 2 3 cosh0 tanh() cotanh0 Rvo BACKSPACE CLEAR Degrees Radians Submit I give up! Hints: Feedback:Explanation / Answer
emf = NABw
emf = peak emf =19.5
A= area = 1 x 10^-2 x 3 x 10^-2 = 3 x 10^-4 m^2
B = magnetic field = 0.52 T
w = angular velocity = 104 rad/s
19.5 = N*3 x 10^-4 * 0.52 * 104
N = 1201.92 = 1201 turns
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