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Digital Electronics

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

NAND gate
NOT gate
OR gate
EXCLUSIVE OR gate

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Digital Electronics
The output of a gate is HIGH if and only if all its inputs are LOW. It is true for

 X-NOR
 NAND
 NOR
 X-OR

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Digital Electronics
A flip flop is a _______ circuit.

 None
 Both A and B
 Sequential
 Combinational

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Digital Electronics
Which is typically the longest: bit,byte,nibble,word?

 bit
 nibble
 byte
 word

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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 .

  1 KHz.
 250 Hz.
 500 Hz.
 2 KHz.

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Digital Electronics
Temperature variation is a/an

 Analog quantity
 Digital quantity
 None
 Either Digital or Analog quantity

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