Answer:
Explanation:
As we know that the force on the moving charge due to magnetic field is given as
[tex]\vec F = q(\vec v \times \vec B)[/tex]
here we know that
[tex]\vec v = v\hat i[/tex]
[tex]q = - e[/tex]
[tex]\vec F = F (-\hat j)[/tex]
so we will have
[tex]F(-\hat j) = (-e)(v (\hat i) \times \vec B)[/tex]
so direction of magnetic field must be along -Z Axis