Problem: A balloon has zero net charge before it is rubbed against a woolen cloth, whereupon it gains a net negative charge of 6.4 pC. Determine the number of electrons that were transferred from the Wool to the balloon.
Determine the distance between two point charges in an isolated system, each of +801] nC that experience a Coulomb force of 2.00 N.
Calculate the power dissipated in transmission lines with a resistance of 1.23 Ω and which carry a 500 A current.