A large flat metal surface has uniform charge density + sigma . An electron of mass m and charge e leaves the surface at point A with speed y, and return to it at point B. The maximum value of AB is

A large flat metal surface has uniform charge density + sigma . An ele

1.	A large flat metal surface has uniform charge density + sigma . An electron of mass m and charge e leaves the surface at point A with speed y, and return to it at point B. The maximum value of AB is
Answer» `( V m in_0)/( SIGMA E)` `(v^2 m in_0)/( e sigma )` `(v^2 e)/(in_0 sigmam)` `(v^2sigma e)/( in_0 m)` ANSWER :B

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A large flat metal surface has uniform charge density + sigma . An electron of mass m and charge e leaves the surface at point A with speed y, and return to it at point B. The maximum value of AB is

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