Question

An electron moving in the direction of the +x-axis enters a magnetic field. If the electron experiences a magnetic deflection in the -y direction, the direction of the magnetic field in this region points in the direction of the An electron moving in the direction of the +-axis enters a magnetic field. If the electron experiences a magnetic deflection in the - direction, the direction of the magnetic field in this region points in the direction of the a. -y-axis. b. -z-axis. c. -x-axis. d. +z-axis. e. +y-axis.

Answer 1

Answer:

As per right hand rule the force direction magnetic field is along - z axis

Explanation:

As we know that the force on the moving charge due to magnetic field is given as

$\vec F = q(\vec v \times \vec B)$

here we know that

$\vec v = v\hat i$

$q = - e$

$\vec F = F (-\hat j)$

so we will have

$F(-\hat j) = (-e)(v (\hat i) \times \vec B)$

so direction of magnetic field must be along -Z Axis