Design a logic circuit that controls an elevator door in a three-story building. M is a logic signal that indicates when the elevator is moving (M = 1) or stopped (M = 0). F1, F2, and F3 are floor indicator signals that are normally LOW, and they go HIGH only when the elevator is positioned at the level of that particular floor. For example, when the elevator is lined up level with the second floor, F2 = 1 and F1 = F3 = 0. The circuit output is the OPEN signal, which is normally LOW and will go HIGH when the elevator door is to be opened. We can fill in the truth table for the OPEN output as follows: a. Because the elevator cannot be lined up with more than one floor at a time, only one o the floor inputs can be HIGH at any given time. This means that all those cases in the truth table where more than one floor input is a 1 are don't-care conditions. We can place an x in the OPEN output column for those eight cases where more than one F

digital logic computer

A circuit is constructed with four resistors, one inductor, one battery and a switch as shown. The values for the resistors are: R1 = R2 = 72 Q, R3 = 61 Q and R4 = 99 Q. The inductance is L = %3D V L 549 mH and the battery voltage is V = 24 V. R3 1) The switch has been open for a long time when at time t = 0, the switch is closed. What is l1(0), the magnitude of the current through the resistor R1 just after the switch is closed? A Submit 2) What is 1(o0), the magnitude of the current that flows through the resistor R1 a very long time after the switch has been closed? A Submit 3) What is VL(0), the magnitude of the voltage across the inductor just after the switch is closed? V Submit 4) What is IL(0), the magnitude of the current through the inductor after the switch has been closed for a very long time? A Submit 5) What is I2(0), the magnitude of the current through the resistor R2 just after the switch is closed? A Submit

Propositional logic is used in the creation of conditional logic for software programs in cases where the Boolean test is required. For example, ladder logic used by PLC (programmable logic controller) programmers control the response to a circuit being in an open or closed state, based on specific conditions stated in the logic. PLCs are used in numerous environments, such as manufacturing product lines, elevators, and many industrial applications. What other computer-science or IT jobs rely on propositional logic?