EMF 150 V N a b = -------- = ------------------------- = 0.796 m2 2 pi f B 2 pi (60.0/sec) (0.500 T)
47.
(a)
mu0 I a 2 r + b PHI = ------- ln (-----------) 2 pi 2 r - b
(b)
2 mu0 I a b v Iloop = ----------------- pi R (4 r2 - b2)
48.
(a) v = I L B t / m
(b) The complete solution for v is
EMF L2 B2 v = ------ [ exp(- ----- t) - 1 ] L B m Rwhich gives a terminal velocity of vf = EMF/(L B) to the right.
(c) I=0
49.
E = - (1/2) mu0 n r I0 omega cos(omega t) for r>R
E = - (1/2) mu0 n (R2/ r) I0 omega cos(omega t) for r<R
Last revised 1998/04/27 |