7. A lamp is controlled from two position A and B (e.g., stair case circuit). The Boolean expression for the above circuit is :
(a) AB’+A’B
(b) AB+A’B’
(c) A’B+A’B’
(d) AB’+ABSubject Name : Electronics Engineering Exam Name : IIT GATE, UPSC ESE, RRB, SSC, DMRC, NMRC, BSNL, DRDO, ISRO, BARC, NIELIT Posts Name : Assistant Engineer, Management Trainee, Junior Engineer, Technical Assistant Electronics & Communication Engineering Books
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