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Digital Electronics

Digital Electronics
Which of the following gates cannot be used as an inverter?

 NAND
 NOR
 AND
 X-NOR

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Digital Electronics
In binary number system the first digit (bit) from right to left is called as

 First Bit
 Last Bit
 LSB, Least Significant Bit
 MSB, Most Significant Bit

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Digital Electronics
Consider the operation 24+17 = 40 .What is the correct base of number so that operation is correct?

 13
 10
 12
 11

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Digital Electronics
A 16-square eliminates

 4 variables
 2 variables
 8 variables
 3 variables

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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?

 90 mV.
 30 mV.
 300 mV.
 900 mV.

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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

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

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