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Digital Electronics

Digital Electronics
The switch which clears a flip-flop is know as

 Reset
 Clear
 None
 Both A and B

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Digital Electronics
A half adder is a ________ circuit.

 None
 Sequential
 Both A and B
 Combinational

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Digital Electronics
The hex address of the 256th memory location is

 000FF
 001FF
 00FFF
 00100

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Digital Electronics
The maximum positive and negative numbers which can be represented in two’s complement form using n bits are respectively,

 +(2n-1-1),-(2n-1-1)
 +2n-1,-(2n-1+1)
 +(2n-1-1),-2n-1
 +2n-1,-2n-1

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Digital Electronics
If two numbers in excess-3 code are added and the result is less than 9, then to get equivalent binary

 0011 is subtracted
 0110 is added
 0110 is subtracted
 0011 is added

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Digital Electronics
A number system with radix 2 is known as

 Decimal
 Octal
 Hexadecimal
 Binary

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