calculate the size of two equal charges that repel each other with a force of 0.1N when situated in 50cm apart in a vacuum. what would be the size of the charge when situated in an insulating medium whose permittivity was ten times of that of a vacuum

The functioning of an electron transport chain is analogous to a) a slinky toy going down a flight of stairs. b) a canoe going over a waterfall. c) a person climbing a flight of stairs one step at a time. d) a person leaping from the top to the bottom of a flight of stairs in one jump.

The field between two charged parallel plates is kept constant. if the two plates are brought closer together, the potential difference between the two plates either a) decrease b) does not change c) increase?

How much energy is supplied to each coulomb of charge that flows through a 12-v battery?