Question

For a positively charged particle moving in a x-y plane initially along the $x$-axis, there is a sudden change in its path due to the presence of electric $and/or$ magnetic fields beyond P. The curved path is shown in the x-y plane and is found to be non-circular. Which one of the following combinations is possible?

• A. $\overrightarrow{E}=0;\overrightarrow{B}=b\hat{i}+c\hat{k}$
• B. $\overrightarrow{E}=a\hat{i}|\overrightarrow{B}=c\hat{k}+a\hat{i}$
• C. $\overrightarrow{E}=0;\overrightarrow{B}=c|\wedge +b\hat{k}$
• D. $\overrightarrow{E}=a\hat{i}|\overrightarrow{B}=c\hat{k}+b|\wedge$

Answer 1

The correct option is B $\overrightarrow{E}=a\hat{i}|\overrightarrow{B}=c\hat{k}+a\hat{i}$

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