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Electric work - Electric potential energy - Electric potential
Electric potential at x as integral of electric filed from point x to infinity
Electric potential of single point charge.
Electric potential of many point charges - superposition.
Electric potential of charged sphere.
Gradient of electric potential.
Two charges on a line
Potential - Potential energy and Work
Nice intuition for electric potential and the unit electron volt
Electric potential can be thought as escape energy
Notations for potential difference
Notations for work over a path
Potential reference point and work
Electric work
Definition of potential difference WA,B / q = VA,B
Calculations for uniform field V = E * d
Electric potential of a point charge
Potential of many point charges
Potential of a sphere
Electrostatic potential energy
Reason one: U = q * V
(Change of K) + (Change of U) = 0 | change of K | = | q * pd |
Reason two: E = - (gradient of the V )
Visualization of scalar field by equipotential lines.
Equipotential lines are perpendicular to the field lines
E is always in the direction of the decreasing potential
Equipotential lines for uniform field
Positive and negative equipotential lines for point charge
Equipotential lines for a physical dipole
**Electric work is path independent Electric potential and reference point
VA = VRef - ( WRef , A / q )
Theorem: voltage is equal to potential difference VA,B = VA - VB Potential is relative, voltage/pd is absolute
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