A serial subtractor can be obtained by converting the serial adder by using the _____________(a) 1’s complement system(b) 2’s complement system(c) 10’s complement(d) 9’s complementThis question was addressed to me by my school teacher while I was bunking the class.The origin of the question is Fast Adder & Serial Adder in section Arithmetic Circuits of Digital Circuits

A serial subtractor can be obtained by converting the serial adder by

1.	A serial subtractor can be obtained by converting the serial adder by using the _____________(a) 1’s complement system(b) 2’s complement system(c) 10’s complement(d) 9’s complementThis question was addressed to me by my school teacher while I was bunking the class.The origin of the question is Fast Adder & Serial Adder in section Arithmetic Circuits of Digital Circuits
Answer» RIGHT answer is (b) 2’s COMPLEMENT system Easiest EXPLANATION: A serial subtractor can be obtained by converting the serial ADDER by using the 2’s complement system. 9’s complement and 10’s complement are used for decimal numbers while adders deal with BINARY numbers.

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