Q. A counter has N flip flops. The total number of states are

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Q. Out of S, R, J, K, Preset, Clear inputs to flip flops, the synchronous inputs are

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Q. Assertion (A): A demultiplexer can be used as a decoder.

Reason (R): A demultiplexer can be built by using AND gates only.

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Q. Assertion (A): The output of a NOR gate is equal to the complement of OR of input variables.

Reason (R): A XOR gate is a universal gate.

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Q. The number of bits in ASCII is

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Q. 4 bit 2's complement representation of a decimal number is 1000. The number is

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Q. In a D latch

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Q. A 4 : 1 multiplexer requires __________ data select line.

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Q. The number of unused states in a 4 bit Johnson counter is

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Q. It is desired to display the digit 7 using a seven segment display. The LEDs to be turned on are

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Q. For a MOD-12 counter, the FF has a tpd = 60 ns The NAND gate has a tpd of 25 n sec. The clock frequency is

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Q. 100101₂ is equal to decimal number

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Q. A₁₆ X 2₁₆ __________ .

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Q. For the binary number 11101000, the equivalent hexadecimal number is

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Q. AECF1₁₆ + 15ACD₁₆ = __________ .

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Q. A XOR gate has inputs A and B and output Y. Then the output equation is

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Q. Wired AND connection can be used in TTL with totem pole output.

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Q. The dual of A + [B + (AC)] + D is

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Q. A divide by 78 counter can be obtained by

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Q. The initial state of MOD-16 down counter is 0110. What state will it be after 37 clock pulses?

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