Question
need help with b and c
Problem 2. (35 pes The coil of wire shown is rotated between two lange megnets thet produce a uniform magnetic Reld The cherging magnetic lus theough the col is dependet only on the rate of angular rotation , as shown in the expressionc BAcos(or) Where don the arealer velotrofth.co.noaceral econ and , knesses iseoordl a) Assame the cal ras H lopse. wirtean expresion that thes h gntude of thendices n n th a) Assume the col has N loops. b) the wire hes a resistance of R, write an expression for the induced current I that appears in the ede (Agam you should havryo numerial inves you, erpressen) 120 pts c) Given that the coil hes 10 loops with a cross sectional area of05 m s spinning indide a magnet of 200 HT at a rate of 200 revclutiors per minute; whst is the maximum value of the induced Emf? x/o is the mecmum instantaneous power dissipa d)the wire of the CDU has a resistance of 100nd, whi the coil? (s pts
Explanation / Answer
E induced = NBAwsin(wt)
I induced = E/R = NBAwsin(wt)/R
for peak sin(wt) =1
E induced = 10*200*10^(-6)*(0.5)*w
100 revolution per minute => 100 * (2*pi/60) rad/s
since 1 revolution = 2pi radian
and minute = 60 sec
Einduced =10*200*10^(-6)*(0.5)*100 * (2*pi/60)
=0.01047197551 V
