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Digital Electronics

Digital Electronics
An 8-square is called

 a cube
 a pair
 a quad
 an octet

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Digital Electronics
Dual slope ADC has R = 1 KΩ and C = 0.22 nanofarad has charging and discharge times for some voltage is 9 ns and 3 ns respectively. The reference Voltage is 2.2 V. What is the peak voltage reached by triangular wave during charging?

 300 mV.
 900 mV.
 30 mV.
 90 mV.

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Digital Electronics
In SSI, the number of gate circuits per chip is

 < 6
 < 25
 < 20
 < 12

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Digital Electronics
Which of the following codes is known as the 8421 code?

 BCD code
 Gray code
 ASCII code
 XS-3 code

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Digital Electronics
The NOR gate is OR gate followed by ___________.

NOT gate
AND gate
NAND gate
None of these

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Digital Electronics
For checking the parity of a digital word, it is preferable to use

 NOR gates
 AND gates
 X-OR gates
 NAND gates

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