hm. a switch can be considered as having two states. or they can be two systems described. One is an open circuit and one is a closed circuit. there is no sink in an open circuit. there is a sink in the closed circuit. they are different types of circuits.

hm. a switch can be considered as having two states.

or they can be two systems described. One is an open circuit and one is a closed circuit.

there is no sink in an open circuit.

there is a sink in the closed circuit.

they are different types of circuits.