2016年1月9日 · Say we have a closed loop system, where the flow Q Q is constant through a pipe. Then, at one segment of the pipe, we make the radius smaller. This causes the …

2022年4月1日 · In the context of your question, "W = q (Va-Vb)" the "work" there refers to an external agent applying forces (to balance the electrostatic force... so that the displacement is …

2020年5月2日 · I am not sure exactly what your problem is. n n is typically an charge carrier density, so the number of free charges dN d N in your volume would be dN = ndV = nAvddt d …

2018年9月19日 · I am very well aware of how to get the damping coefficient experimentally by observing a system in action. Given the dimensions and fluid properties of a theoretical …

This is problem 2.40 from Introduction to Electrodynamics by D. J. Griffiths: A point charge q q is inside a cavity (not necessarily spherical or anything similarly regular) in an uncharged …

2015年5月15日 · How do I prove the relation between the vectors of magnetic moment $\vec\mu$ and angular momentum $\vec L$, $$\vec\mu=\gamma\vec L$$ ? Many text books and lecture …

2020年11月1日 · If you are asking why Ek E k should not be 12qV 1 2 q V then the answer is that by definition, kinetic energy is 1 2mv2 1 2 m v 2 and is equal to the potential energy qV q V …

2015年7月12日 · Could someone show me a simple and intuitive derivation of the Centripetal Acceleration Formula a = v2 / r, preferably one that does not involve calculus or advanced …

So I'm studying electrostatics and I came across to two different definitions of potential difference/voltage (because we're in stationary regimes) and I'm having trouble understanding …

2024年7月3日 · it will take work to move the positive charge from point A to point B, as I must counteract the vertical component of the electric force and so on. You are quite correct that the …