Q. A logical expression Y = A + A̅B is equal to

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Q. Using the same flip flops

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Q. A 3 bit up-down counter can count from

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Q. The density of dynamic RAM is

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Q. A 3 input NAND gate is to be used as inverter. Which of the following will give better results?

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Q. The maximum counting range of a four stage counter using IC 74193 is

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Q. Find the FSV (full scale voltage) in a 6 bit R-2R ladder D/A converter has a reference voltage of 6.5 V.

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Q. Parallel adder is

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Q. An 8 bit binary number is to be entered into an 8 bit serial shift register. The number of clock pulses required is

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Q. Assertion (A): CMOS devices have very high speed.

Reason (R): CMOS devices have very small physical size and simple geometry.

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Q. Octal number 12 is equal to decimal number

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Q. Hexadecimal number E is equal to binary number

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Q. Decimal number 46 in excess 3 code =

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Q. Logic hardware is available only in NAND and NOR.

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Q. A 4 input AND gate is equivalent to

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Q. Assertion (A): TTL is a very popular logic in SSI and MSI category.

Reason (R): In Schottky TTL the power dissipation is less than in ordinary TTL.

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Q. FF₁₆ when converted to 8421BCD =

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Q. ECL has high switching speed because the transistors are

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Q. Karnaugh map can not be drawn when the number of variables is more than 4

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Q. A dynamic RAM cell which holds 5 V has to be refreshed every 20 ms so that the stored voltage does not fall by more than 0.5 V. If the cell has a constant discharge current of 0.1 pA, the storage capacitance of cell is

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