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Two insulating plates are uniformly charged in such a way that the potential difference between them is `V_2-V_1=20V` (i.e. plate 2 is at a higher potential). The plates are separated by d = 0.1m and can be treated as infinitely large. An electron is released from rest on the inner surface of plate 1. What is its speed when it hits plate 2 ? (e=1.6xx10^9 C,m_0=9.11xx10^(-31)Kg)`

A

`2.65 xx 10^6 m//s`

B

`7.02 xx 10^(12) m//s`

C

`1.87 xx 10^6 m//s`

D

`32 xx 10^(-19) m//s`

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The correct Answer is:
A
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