Changes

'''Kirchoff's voltage law''' ('''KVL''') states that that the [[voltage]] drops in any closed electrical loop must sum to 0.<ref name="Schwarz">Schwarz, Stephen E. and William G. Oldham. ''Electrical Engineering: An Introduction, 2e.'' Oxford University Press: 1993.</ref> A voltage drop is the change in voltage over any element in a [[circuit]].

'''Kirchoff's voltage law''' ('''KVL''') states that that the [[voltage]] drops in any closed electrical loop must sum to 0.<ref name="Schwarz">Schwarz, Stephen E. and William G. Oldham. ''Electrical Engineering: An Introduction, 2e.'' Oxford University Press: 1993.</ref> A voltage drop is the change in voltage over any element in a [[circuit]].

KVL is derived from the fact that the voltage at any point in the circuit must have a defined value. For example, say you start at point A and travel around the loop adding up voltages along the way. If the voltage drops did not sum to zero then when you returned to point A it would have a different voltage than when you started, which is impossible.<ref name="Schwarz">

KVL is derived from the fact that the voltage at any point in the circuit must have a defined value. For example, say you start at point A and travel around the loop adding up voltages along the way. If the voltage drops did not sum to zero then when you returned to point A it would have a different voltage than when you started, which is impossible.<ref name="Schwarz" />

[[Category:Electrical Engineering]]

[[Category:Electrical Engineering]]