Unit4: COMBITIONAL CIRCUIT

_______is an example of a combinational Circuit.

• Counter

• encoder

• flip flop

• Register

Total number of inputs in a half adder_ ____

• 2

• 3

• 4

• 52

Total number of output in a full adder_______

• 3

• 4

• 2

• 42

in which operation carry bit is obtained

• Addition

• subtraction

• Multiplication

Half subtractor is used to perform subtraction of ___________ 

• 2 bits

• 4 bits

• 3 bits

• all

In a sequential circuit, the output at any time depends __________

• Past output values 

• Both past output and present input 

• intermediate values

• present input

A decoder converts n inputs to __________ outputs.

• 2ⁿ

• n²

• 3n

• 2n

How many outputs do an encoder have

• n

• 2n

• 2ⁿ

• nⁿ