Answers

2016-04-20T17:07:07+05:30
Electron and proton have same charge but with opposite sign, so both will experience same amount of force but in opposite direction.
Proton will experience in the direction of the external field , electron will experience in the direction opposite to the electric field.
               
ii) The magnitude of acceleration depends on the force acting and the mass of the particle and hence as proton has higher mass than electron it will experience less acceleration when compared to electron as the force is same on both of them
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