Digital system

FR F F10 11 1 Backopace Ouation LHChoose correct answers of given questions, net vrine ing more than one nwor will be considered as wromg() rcle your preferred choice) a) How many ontries will be in the trth table of a thre input NAND gate? Ctrl 1) 6 (ON (D)9 b) Which of these set of gates are designated as universal logie gates? (A) NOR, NAND () XOR, NOR, NAND (C) OR, NOT, AND (D) NOR, NAND, XNOR ) If a hexa-decimal number needs to convert to binary. For each hexa-decimal digit there will be how many bits? (A) I (8) 2 (C) 4 (D) 8 d) Convert the binary mumber 11 110 1 10000 to hexa-decimal number? ) (A) 1010 (D) FOFO (C) 7070 (D) 9090 ) When will be in output of NOT gate is high? (A) When input is high (B) When input is low (C) When input is high and low (D) None of the above