The algebraic sum of all voltage rises around a loop must be zero

KVL is a consequence of the physical law of “conservation of momentum”

The algebraic sum of all currents entering a node must be zero

KVL is a consequence of the physical law of “conservation of mass”

The algebraic sum of all currents exiting a node must be zero

KVL is a consequence of the physical law of “conservation of energy”

The algebraic sum of all currents exiting a loop must be zero

The algebraic sum of all voltage drops exiting a node must be zero

The algebraic sum of all currents entering a loop must be zero

The algebraic sum of all voltage rises exiting a node must be zero

The algebraic sum of all voltage drops around a loop must be zero

KVL is a consequence of the physical law of “conservation of charge”