# Questions tagged [conservative-field]

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### Relation between velocity and position vector in a central force

I am aware that the dot product of the position and velocity vector, $(\vec{r}\cdot\vec{v})$, in circular motion under a central force, $F(r)=-\frac{k}{r^2}$, is equal to zero as the two vectors are ...
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### Conservative or non-conservative? Frame dependent?

Can a force which is conservative in one frame become non-conservative in another frame. Why/Why not? Basically what does it mean for work to be zero in closed loop? If I am thinking of coordinates ...
19 views

### Can changing EMI through a coil change the flux through it?

As the Lenz's law states, the magnitude of EMF $E=N\frac{d\phi}{dt}$, which means changing flux can change the EMF across the coil. I have the following questions: Across which points is the EMF ...
294 views

### Is tension a conservative force?

Are forces such as tension (from an in extensible string), normal reaction, and applied force from us, non conservative forces? If so why? I have read in few books that these forces are labeled as ...
58 views

### Is static friction considered to be a conservative force? [closed]

The work done by static friction is 0.So shouldn't it be a conservative force?
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### Why can't conservative forces depend on velocity?

In my mechanics lecture notes, it is written that, for a force $F$, To be conservative, $F$ must be a function of position only: forces that depend on velocity, time, etc. cannot be conservative. ...
101 views

### What is a non-conservative system?

I've been searching a bit on the internet for a mathematical description of a non-conservative system, but I could not find it. I'm looking for a good description. Wikipedia does not have an article ...
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### What happens to the potential energy of an object if the conservative force associated with it vanishes [closed]

Now, some textbooks have been telling me that when you do work against a conservative force, ("it is stored up as potential energy") Apparently this gives the ability to do work, because when the ...
181 views

### Non-conservative EMF around a circuit and delocalization of motional EMF

Around a circuit, the EMF is non-conservative. In fact, we are in a closed loop and "its" work (the EMF is actually the work itself per unit charge) is non-zero (contrarily to conservative forces/...
89 views

### Feynman says “The total work done in going around a complete cycle should be zero for gravity forces”

I am reading "The Feynman lectures on physics volume 1". Feynman says "The total work done in going around a complete cycle should be zero for gravity forces" When gravity forces are given, I ...
67 views

### Why is it called “Conservative” field?

I understand -mathematically- what a conservative field is; it is a vector field that can be expressed a gradient of some scalar function OR it is a vector field whose line integral is path ...
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### Potential energy-Conservative forces

Does potential energy exist because conservative forces exist? Can a system of objects that interact with dissipative forces have potential energy?