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Digital Electronics

Digital Electronics
The output of a gate is LOW when at least one of its inputs is HIGH. This is true for

 OR
 NOR
 NAND
 AND

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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 .

 250 Hz.
 2 KHz.
 500 Hz.
  1 KHz.

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Digital Electronics
ASCII code is a

 7-bit code
 5-bit code
 8-bit code
 10-bit code

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Digital Electronics
A debouncing circuit is

A monostable MV
A latch
A bistable MV
An astable MV

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Digital Electronics
The X-OR and X-NOR gates can have how many inputs?

 1
 4
 any number
 2

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Digital Electronics
Which of the following gate is a two-level logic gate

NAND gate
EXCLUSIVE OR gate
OR gate
NOT gate

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