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Electricity

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16 Mar 2008 12:04:39 IST

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True or false

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When the electrostatic field is uniform then absolute potential has no meaning.

Is this statement true or false? , if false why and if true explain.

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dheer Bhatia

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16 Mar 2008 12:07:56 IST

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true

Ananth Patri

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16 Mar 2008 12:10:03 IST

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wat is meant by absolute potential??? is it positive value of potential???well dV/dr=-E henceon integrating i think we have potential...

dheer Bhatia

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16 Mar 2008 16:02:59 IST

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absolute pot i impractical . dats why pot difference is considered for motion of charges

radon

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16 Mar 2008 18:28:58 IST

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please clarify

Neeraj Agarwal

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16 Mar 2008 21:39:17 IST

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i didn't get ur question...???

if its the potential at that point...then it should have meaning...

jeesucks

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16 Mar 2008 23:45:52 IST

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electic field lines propagate from higher pottential to lower pottential so pottential gradient is constant whereas absolute pottential can have any value

suresan

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18 Mar 2008 10:38:27 IST

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The cocept of absolute potential at a point refers to the potential of that poit with respect to a specific point where the potential is/can be assigned a specific standard value. Tipically infinity is taken as the the specfic point and the value assigned is zero.
In case of a uniform Electric field stretching to infinite there is no point assigning the value zero for potential at infinity. Because it doesn't simplify the process of evaluation and stadardisation at all. I think probabily this is the reason why they say that the concept of absolute potential is irrelevent in case of uniform electric fields.

BILLA

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18 Mar 2008 12:07:29 IST

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it does have an absolute potential at a given point which can be fonud from the relation V=Ex where x is the distance from the source!!!

suresan

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18 Mar 2008 12:39:23 IST

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I think source points are not usually taken as the reference points in case Electric fields and graviational fields at least. The conceptual reason, I think, is that in such cases field parameters(Efield, Elctristatic potential etc) are not well defined at the source points.

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