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Digital Electronics

Digital Electronics
The binary code of (21.125)10 is

10101.01
10100.111
10100.001
10101.001

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Digital Electronics
The inputs of a NAND gate are connected together. The resulting circuit is ___________.

OR gate
None of these
AND gate
NOT gate

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Digital Electronics
The resolution of a 12 bit analog to digital converter in percent in

 0.04882.
  0.02441.
 0.09760.
  0.01220.

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Digital Electronics
Assuming 8 bits for data, 1 bit for parity, I start bit and 2 stop bits, the number of characters that 1200 BPS communication line can transmit is.

None of these
120 CPS
10 CPS
12 CPS

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Digital Electronics
What is the minimum number of NAND gates required to realize an X-OR gate?

 4
 3
 5
 6

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

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