Exam 3 Review:  Chapter 11:  Physics Underlying Impulse Transmission  

voltage = potential difference = potential - The difference in electrical potential = electromotive force = charge gradient between two points in a circuit expressed in volts.

current - The amount of electric charge flowing past a specified circuit point per unit time expressed in amperes (amps).

resistance - The opposition of a body or substance to current passing through it, resulting in a change of electrical energy into heat or another form of energy expressed in ohms; insulators have a high resistance; the inverse of conductivity.

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