The figure shows three situations when an electron with velocity $\vec v$ travels through a nuniform magnetic field $\vec B$ . In each case, what is the direction of magnetic force on the electron?
The figure shows three situations when an electron with velocity $\vec v$ travels through a nuniform magnetic field $\vec B$ . In each case, what is the direction of magnetic force on the electron?
- A
positive $z-$ axis, negative $x-$ axis, positive $y-$ axis
- B
negative $z-$ axis, negative $x-$ axis and zero
- C
positive $z-$ axis, positive $y-$ axis and zero
- D
negative $z-$ axis, positive $x-$ axis and zero
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