A charge particle 4.10^-6 C moves from a point at potential 100V to a point at potential 20V. How much, in absolute value, does the work performed by the electrostatic field on the charge?

explanation: magnetic pole, region at each end of a magnet where the external magnetic field is strongest. the south-seeking pole, or any pole similar to it, is called a south magnetic pole. unlike poles of different magnets attract each other; like poles repel each other.

that would be because of both gravity and friction. so     c