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Digital Electronics

Digital Electronics
Temperature variation is a/an

 Analog quantity
 Digital quantity
 Either Digital or Analog quantity
 None

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Digital Electronics
A multiplexer is a combinational logic circuit used to perform the operation

 AND-OR
 AND-AND
 NOR-OR
 XOR-NAND

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Digital Electronics
An AND gate will function as OR if

All the inputs are ‘0’
All the inputs and outputs are complemente'
All the inputs to the gates are “1”
Either of the inputs is “1”

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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
What is the difference between xor gate and exor gate.

 both are same
 xor gives one output while exor gives two
 xor and exor are complement of each other
 xor gives two outputs while exor gives one

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Digital Electronics
For 4 bit parallel addition, we need ________ half adder(s) and ________ full adder(s)

 1 and 3
 1 and 4
 0 and 3
 0 and 4

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