For a measurement to make sense it must include a

Explain why electric current cannot exist if a current doesn't have a voltage source.

Two point charges are separated by a certain distance. how does the strength of the electric field produced by the first charge, at the position of the second charge, change if the second charge is doubled? a. the field does not change b. the field strength decreases by half. c. the field strength doubles d. the field strength quadruples

The energy produced as a result of this flow of electrons from atom to atom is called