state the expression for electric potential at a point due to a
Answer (1)
10th May, 2020
Potential is the capacity to do work in a given geometry. An accumulation of electrical charge Q exerts a force F on another charge q at a distance r to reveal its potential energy U by Coulomb’s constant k, in the relationship U=Qqk/r observable by a measurable force F=Qqk/r^2 where Coulomb’s constant k= 1/(4piEo) = 9E9 NM^2/C^2 and Eo is the electrostatic permittivity of free space. The electric potential expression is Kq/r.
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