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Digital Electronics

Digital Electronics
The binary number 10101 is equivalent to decimal number ___________.

21
12
27
19

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Digital Electronics
F’s complement of (2BFD)Hex is

 D403
 C403
 D402
 E304

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Digital Electronics
The decimal equivalent of the highest possible address for an 8-bit address bus is

 128
 255
 256
 8

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Digital Electronics
The voltages corresponding to LOW and HIGH levels respectively are given below. Identify the voltages which correspond to positive logic system.

 5 V and 0 V
 1 V and -5 V
 0 V and 5 V
 –1.5 V and – 5 V

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

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

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Digital Electronics
A multiplexer is a combinational logic circuit used to perform the operation

 AND-OR
 AND-AND
 NOR-OR
 XOR-NAND

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MORE MCQ ON Digital Electronics

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