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- Thread starter acherentia
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rcgldr

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F=ma=qE?

My textbook gives a value for E CRT of 8.0 X 10^5 N/C. Which if this was a constant number, according to my calculations a=1.41 x 10^17 m/s^2.

But I also know that E=kQ/r^2. Since r is changing as the electrons are moving closer and closer into the field, so r is getting smaller and smaller, shouldn't the value of E be constantly changing.

If the value of E is constantly changing as electrons move closer to it, how did they come up with the number 8.0 X 10^5 N/C for E?

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