//chapter10,Example10_4,pg 272

vx=1.7*10^7

Ey=3.4*10^4

x=3*10^-2

t=x/vx

//y=0.5*ay*(t^2)

ay=(e*Ey)/m

y=0.5*ay*(t^2)

Bz=Ey/vx

printf("verical displacement of electron \n")

printf("y=%.2f m",y)

printf("\nmagnitude of magnetic field\n")

printf("B=%.4f wb/m2",B)

printf("\ndirection of field is upward as Ey is downward")