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Boolean Expression for Relay Contacts and Lamp

  1. Jan 27, 2017 #1
    1. The problem statement, all variables and given/known data
    In the diagram, Y006 is a lamp, and X & R references are relay contacts. Write down a Boolean expression for the lamp to light.

    Q3.png

    2. Relevant equations


    3. The attempt at a solution
    This is what I have done as an interim step to help me visualise whats going on:

    A3a.png

    This is the final answer

    A3b.png

    Is this correct?

    Thanks
     
  2. jcsd
  3. Jan 27, 2017 #2
    That is it!
     
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