Question:
An AND Gate has 7 inputs. How many input words are in its truth table?
An AND Gate has 7 inputs. How many input words are in its truth table?
Show Hint
Number of input words equals 2 raised to the number of inputs.
Updated On: Jul 2, 2026
- 7
- 14
- 128
- 256
Show Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Step 1: A truth table lists every possible combination of the input values. Each input can be either 0 or 1.
Step 2: With n independent binary inputs, the number of distinct input combinations (rows or input words) is \(2^n\).
Step 3: Here n is 7, so the count is \(2^7\).
Step 4: Compute. \(2^7 = 128\). The answer is 128 (option C).
Step 2: With n independent binary inputs, the number of distinct input combinations (rows or input words) is \(2^n\).
Step 3: Here n is 7, so the count is \(2^7\).
Step 4: Compute. \(2^7 = 128\). The answer is 128 (option C).
Was this answer helpful?
0
0
Top CPET Computer Science Questions
- Which of the following is a key reason for choosing DRAM over SRAM for main memory?
- Which of the following components in an FPGA is responsible for implementing combinational and sequential logic?
- What is the main purpose of declaring a base class as virtual in multiple inheritance?
- What happens if a class contains at least one pure virtual function?
- What happens if a derived class defines a function with the same name as a base class function, but with a different parameter list?
View More Questions
Top CPET Digital Logic Questions
Top CPET Questions
- Which of the following is a key reason for choosing DRAM over SRAM for main memory?
- Which of the following components in an FPGA is responsible for implementing combinational and sequential logic?
- What is the main purpose of declaring a base class as virtual in multiple inheritance?
- What happens if a class contains at least one pure virtual function?
- What happens if a derived class defines a function with the same name as a base class function, but with a different parameter list?
View More Questions