Two insulating plates are both uniformly charged in such a way that the potential difference between them is $$V2-V1=20V$$. (i$$.e. ,plate $$2$$ is at a higher $$potential). The plates are separated by d $$=$$ $$0$$. $$1$$ m 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 $$2$$? $$e=1.6$$ x $$10-19C$$, $$m0=9.11$$ x $$10-31kg$$

Question

Two insulating plates are both uniformly charged in such a way that the potential difference between them is $$V2-V1=20V$$. (i$$.e. ,plate $$2$$ is at a higher $$potential). The plates are separated by d $$=$$ $$0$$. $$1$$ m 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 $$2$$? $$e=1.6$$ x $$10-19C$$, $$m0=9.11$$ x $$10-31kg$$

Infinity Learn · Accepted Answer

For electron $$12mv2=eEd=eV2-V1$$⇒$$v=2eV2-V1m$$

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