2020年2月19日 · Your working isn't that clear. The potential is the negative of the work done by the field to bring $1C$ from a point of zero reference (usually set at infinity) to the specified …

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2020年7月28日 · The formula V = kQ/R gives the potential at the surface of a spherically symmetrical charge, Q, of radius, R (on the surface of your shell). It is found by integrating the, …

2019年5月8日 · So I have a few questions regarding a Van De Graff Generator. With the Equation: V=kQ/r where V is the Voltage Potential, k is the constant, Q is the charge in …

2024年5月8日 · V=Kq/r for a positive point charge. Assume B is the closest distance of approach for any test charge without experiencing a force due to the positive point charge. Now, if I want …

2024年8月15日 · $$ V= \frac{1}{r}$$ $$-\nabla V = \frac{1}{r^2} \hat r$$ Which is the correct field direction for all valid points in space You need to use the correct field and not zhat, employing …

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 …

So if in the equation PE = qV i put V = kQ/r I will have kQq/r which is the potential energy for any two particles, Also, one small, thing, have you replaced the variables q1 and q2 by q and Q? …

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2019年4月14日 · When dimensions become very small, we are no longer in the realm of classical physics where potentials have mathematical singularities as in the classical 1/r Coulomb …