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Digital Electronics

Digital Electronics
Master-slave flip flop consists of ________ flip-flop(s).

 2
 1
 3
 4

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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.
  1 KHz.
 2 KHz.
 250 Hz.

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Digital Electronics
When will be the output of a NOT gate is HIGH ?

 the input is HIGH and LOW
 the input is LOW
None of these
 the input is HIGH

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Digital Electronics
A device which converts BCD into octal is called

 decoder
 encoder
 demultiplexer
 code converter

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Digital Electronics
The number FF in base-16 systems will be equal to ________ in binary system.

 10011001
 10101010
 11111111
 11101110

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Digital Electronics
Complement of XNOR and NOR is ________ and ________ respectively.

 OR, NOR
 NOR, XNOR
 XOR, OR
 XOR, NOR

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