1. The problem statement, all variables and given/known data Why is it that the output is equal to V+ (when the switch is open) in diagram A, if there is no current flowing? Why is it that A (1/0) is used by convention? I mean the lamp I got at home has a "0" for off and "1" for on, on the switch. This is confusing me. 2. Relevant equations High= 1 Low = 0 3. The attempt at a solution Not sure at all.