An electron is moving in the positive -direction

PHYSICS · Subjective · CBSE · Physics · Moving Charges and Magnetism · Moving Charges and Magnetism

Problem

An electron is moving in the positive

x

-direction. Match the following columns for the deflection of the electron just after the fields are switched on. (

E_0

and

B_0

are positive constants.)

Column I	Column II
(a) Magnetic field $\mathbf{B}=B_0\hat{\mathbf{j}}$ is switched on	(p) Negative $y$ -axis
(b) Magnetic field $\mathbf{B}=B_0\hat{\mathbf{k}}$ is switched on	(q) Positive $y$ -axis
(c) Magnetic field $\mathbf{B}=B_0\hat{\mathbf{i}}$ and electric field $\mathbf{E}=E_0\hat{\mathbf{j}}$ are switched on	(r) Negative $z$ -axis
(d) Electric field $\mathbf{E}=E_0\hat{\mathbf{k}}$ is switched on	(s) Positive $z$ -axis