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Digital Electronics

Digital Electronics
NOT gates are to be added to the inputs of which gate to convert it to a NOR gate?

 AND
 NAND
 X-NOR
 OR

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

 < 10,000
 1000 to 10,000
 100 to 9,999
 100 to 999

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Digital Electronics
A bubbled NAND gate is equivalent to a

 NOR gate
 OR gate
 NAND gate
 X-OR gate

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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
 MSB, Most Significant Bit
 LSB, Least Significant Bit

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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.
 300 mV.
 30 mV.
 90 mV.

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Digital Electronics
The code used in digital systems to represent decimal digits, letters, and other special characters such as + , – , . , * , etc. is

 natural BCD
 hexadecimal
 octal
 ASCII

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