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An electron is moving is the x-y plane along the positive x-axis: There is a sudden change in its path due to the presence of electric or magnetic fields beyond P as in figure the curved path lies in the x-y plane and is found to be non-circular. Which of the following combinations is possible?

Option: 1

E=0, B=b \hat{i}+c \hat{k}


Option: 2

E=a \hat{i}, B=c \hat{k}+b \hat{i}


Option: 3

E=0, B=c \hat{\jmath}+b \hat{k}


Option: 4

E=a \hat{i}, B=c \hat{k}+b \hat{\jmath}


Answers (1)

best_answer

Since the path of the particle beyond P is non-circular, both E and B fields must be present beyond P.

Curved bath lies in the x-y plane, the magnetic freed must be in the x-y plane.

Hence, option (b) E=a \hat{i}, B=c \hat{k}+b \hat{i}.

Posted by

vishal kumar

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