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The lights in a classroom are controlled by two switches: one at the back and one at the
Chapter 2, Problem 24(choose chapter or problem)
The lights in a classroom are controlled by two switches: one at the back and one at the front of the room. Moving either switch to the opposite position turns the lights off if they are on and on if they are off. Assume the lights have been installed so that when both switches are in the down position, the lights are off. Design a circuit to control the switches.
Questions & Answers
QUESTION:
The lights in a classroom are controlled by two switches: one at the back and one at the front of the room. Moving either switch to the opposite position turns the lights off if they are on and on if they are off. Assume the lights have been installed so that when both switches are in the down position, the lights are off. Design a circuit to control the switches.
ANSWER:Step 1 of 4
The objective of the problem is to design a circuit to control the switches if there are two switches to control the lights in the classroom, one at the back and other at the front of the room. The lights in the classroom are turned on and off depending upon the position of the switches.
Let the variables P and Q represents the position of the two switches respectively and let R be the lights. Let 0 represents that the switch is in the down position and 1 represents that the switch is in the up position.
Let R = 0 represents that the lights are off and R = 1 represents that the lights are on.