homework and exercises - When do we use the formula …
2021年5月3日 · The actual solution of this question is to be solved using Gauss' Law. However, I solved for charge inside (Q) using the formula E=kQ/r^2, putting E=+100 N/C and r=+0.1 m …
how do you solve E=kq/r^2 Solve for r | Wyzant Ask An Expert
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If field strength (magnitude) is: $E=kq/r^2 - Physics Stack Exchange
2023年12月29日 · The formula for the Electric field strength (magnitude) is: $$E=kq/r^2$$ where $k$ is a constant, $r$ is the distance from a point charge, and $q$ is the magnitude of ...
What's the difference between $E=\\frac{F}{q}$ and …
In classical mechanics, all physical interactions are said to happen through collusions. According to Coulomb's law, the force seems to be magically acting from a distance, i.e: a charge at one …
Why do parallel plates create a unifrom field? [duplicate]
2019年10月27日 · (On the other hand, your proposed dependence, $\vec{E}=kQ/r^2$, is obviously nonsense - it has a vector on the left and a scalar on the right. The correct version is …
Where does the equation - Physics Stack Exchange
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electrostatics - Why the electric field on the surface of charged ...
2019年5月18日 · You are right that only point charges satisfy $\vec{E} = kq\hat{r}/r^2$ exactly. In general, given a random charge distribution $\rho(\vec{r})$, you have to do an integral to find …
Divergence of Electric Field Due to a Point Charge
2018年1月9日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
Electric potential $V = kq/r$ derivation - Physics Stack Exchange
2020年2月19日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …
electromagnetism - Physics Stack Exchange
2024年10月21日 · Stack Exchange Network. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for …