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Digital Electronics

Digital Electronics
The resolution of a 12 bit analog to digital converter in percent in

 0.09760.
  0.02441.
 0.04882.
  0.01220.

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Digital Electronics
The simplified block diagram of a 10-bit A/D converter of dual slope integrator type is shown in figure. The 10-bit counter at the output is clocked by a 1 Mhz clock. Assuming negligible timing overhead for the control logic, the maximum frequency of the analog signal that can be converted using this A/D converted is approximately .

 500 Hz.
 2 KHz.
  1 KHz.
 250 Hz.

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Digital Electronics
A 32 × 10 ROM contains a decoder of size

 10 × 32
 32 × 32
 5 × 32
 32 × 10

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Digital Electronics
A digital voltmeter has a read out range from 0 to 999 counts, the resolution is

  1 mV.
 0.01 V.
 1 V.
 1.1 V.

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Digital Electronics
A half adder is a ________ circuit.

 Sequential
 Combinational
 None
 Both A and B

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 an X-OR or an X-NOR
 an AND or an X-NOR
 a NAND or a NOR
 an OR or a NAND

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