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Digital Electronics

Digital Electronics
The 7-bit Hamming code is used to transmit

 no data bits
 4 data bits
 3 data bits
 7 data bits

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Digital Electronics
What logic function is produced by adding inverters to the inputs of an AND gate?

 NAND
 OR
 NOR
 X-OR

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Digital Electronics
Which logic family provide minimum power dissipation

 CMOS
 ECL
 TTL
 JFET

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Digital Electronics
If a counter having 10 flip flops is initially at 0, What count will if hold after 2060 pulses?

 000 001 1100.
  000 000 1000.
  000 000 1100.
 000 000 1110.

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Digital Electronics
An 8 × 4 ROM contains a decoder of size

 8 × 4
 3 × 8
 3 × 4
 8 × 8

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Digital Electronics
The effect of stray magnetic field on the actuating torque of a portable instrument is maximum when the operating field of the instrument and the stray fields are

 Inclined at 30°.
 Inclined at 60°.
  Parallel.
 Perpendicular.

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