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Digital Electronics

Digital Electronics
The logic expression A + B can be implemented by giving inputs A and B to a two-input

 NAND gate
 X-OR gate
 NOR gate
 X-NOR gate

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Digital Electronics
Which logic family provide minimum power dissipation

 ECL
 CMOS
 TTL
 JFET

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Digital Electronics
What is the minimum number of NOR gates required realizing an X-OR gating?

 5
 4
 6
 3

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Digital Electronics
Which of the following gates is known as a coincidence detector?

 X-OR gate
 NAND gate
 AND gate
 X-NOR gate

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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
A gate is enabled when its enable input is at logic 1. The gate is

 NOR
 NAND
 OR
 none of these

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