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conservative force
work done by this type of force in moving an object between any two positions is independent of the path taken
deltaPE = -W
change in the potential energy between any two points equals the negative of the work done by a conservative force on an object as it moves from one point to another
W = F(d) = E(q)(d)
work done by the electric field to move a charge some distance
positive plate
positive charge has the greatest potential energy here
negative plate
negative charge has the greatest potential energy here
electric potential
electric potential energy per unit charge
V=PE/q
electric potential formula
delta V = delta PE/q
potential difference formula
postive plate to negative plate
movement of positive test charge
negative plate to positive plate
movement of negative test charge
volt
SI unit of electric potential
voltage
SI unit of potential difference
V = k(Q)/r
electric potential of a point charge - electric potential at a distance r from charge Q
W = -q(delta V)
work formula derived from change in potential energy formula (delta PE = q(delta V)); work done by the electric field to move a positive charge from intial point to final point is equal to the negative change in potential energy
delta V= (E)(d)
potential difference and electric field relationship; electric field points in decreasing electric potential
1N/C = 1V/M
SI units of Electric field equal one another
equipotenial lines
lines that are perpendicular to electric field lines; all points on this line have the same electric potential; the potential difference is zero, so no work is required to move a charge from one point to another on this line
