# Arithmetic Circuits – Exercise – 1

Exercise – 1

1. It is a simple computational digital circuit built from logic gates : (a) Full Adder (b) Half Adder (c) Null Adder (d) None of the above

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2. In order to add 1111+1101, we require : (a) One FA and one HA (b) Two FA and one HA (c) Two FA and two HA (d) Three FA and one HA

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Discuss (a) 1s (b) 2s (c) 4s (d) 8s

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Discuss (a) Sequential circuits (b) Combinational circuits (c) Either sequential or combinational circuits (d) None of above

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5. It is a circuit, which subtracts two inputs each of one bit : (a) Full Subtractor (b) Half Subtractor (c) Full Adder (d) Half Adder