0 0 votes A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned ON and also can be turned OFF by any one of the switches irrespective of the state of the other switch. The logic of switching of the bulb resembles an AND gate an OR gate an XOR gate a NAND gate Electronic Devices gate2013-ec electronic-devices + – Milicevic3306 357 views answer comment Share Follow Add Sync Questions Print 0 reply Please log in or register to add a comment.