Question
An electron with velocity $\vec{v}=\left(v_x \hat{i}+v_y \hat{j}\right)$ moves through a magnetic field $\vec{B}=\left(B_x \hat{i}-B_y \hat{j}\right)$. The force $\overrightarrow{ F }$ on the electron is: ( e is the magnitude of its charge)
✓
Answer
(d) $e\left(v_x B_y+v_y B_x\right) \hat{k}$
Explanation: $e\left(v_x B_y+v_y B_x\right) \hat{k}$
The force is given as $- e ( v \times B )$.
Explanation: $e\left(v_x B_y+v_y B_x\right) \hat{k}$
The force is given as $- e ( v \times B )$.
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