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Digital Electronics

Digital Electronics
How many NOR gates are required to obtain AND operation?

 1
 3
 4
 2

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Digital Electronics
The binary number designations of the rows and columns of the K-map are in

 BCD code
 Gray code
 XS-3 code
 binary code

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

 AND
 NAND
 X-NOR
 NOR

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Digital Electronics
The output of a logic gate is 1 when all its inputs are at logic 0. The gate is either

 a NAND or a NOR
 an X-OR or an X-NOR
 an AND or an X-NOR
 an OR or a NAND

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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?

 900 mV.
 90 mV.
 300 mV.
 30 mV.

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

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

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