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WorksheetsDigital Electronics BSc Physics
Total questions: 10
Worksheet time: 5mins
Decimal equivalent of (1100)2
10
12
8
Binary equivalent of 1310
1101
1111
1010
One's compliment of 1011
0101
1000
0100
Two's complement of 00110
11010
01010
11011
How many select lines are required for a 1-to-4 demultiplexer?
3
2
1
Half-adders have a major limitation in that they cannot __________
Accept a carry bit from a present stage
Accept a carry bit from a next stage
Accept a carry bit from a previous stage
The difference between half adder and full adder is __________
Half adder has two inputs while full adder has four inputs
Half adder has two inputs while full adder has three inputs
Half adder has one output while full adder has two outputs
A circuit with one input and many outputs
Multiplexer
Demultiplexer
None of the above
For subtracting 1 from 0, we use to take a _______ from neighbouring bits.
Carry
Borrow
Input
How many outputs are required for the implementation of a subtractor?
1
3
2
