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abk80

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**[SOLVED] Help with RC circuits**

Can someone explain how to find the intantaneous value of voltage in a capacitor at any specific instant in time. I am taking a course in electronics and the textbook isn't really clear on this. I have the equation:

-t/T

Vc=E(1-e )

t=RC

Not sure why I am subracting from one. And why the negative symbols. I am sure this question is nonsense to an engineer or tech but I am stuck. Thanks