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Digital Electronics

Digital Electronics
A group of four bits is known as

 Bit
 Byte
 Nibble
 Word

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Digital Electronics
Digital circuit can be made by the repeated use of ___________

None of these
NOT gates
NAND gates
OR gates

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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.
 900 mV.
 300 mV.

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Digital Electronics
A read only memory in which the present contents must be erased before the new information can be stored is

 PROM
 EAROM
 ROM
All of these

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Digital Electronics
Which circuit is used in between two systems having two different codes

 Conversion
 Combinational
 Sequential
 Both A and B

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Digital Electronics
A bubbled NAND gate is equivalent to a

 NOR gate
 X-OR gate
 OR gate
 NAND gate

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