Multiple choice questions on AND, OR, and NOT logic gates with answers

📚 Quick Study Guide

• 💡 AND Gate: The output is TRUE only if both inputs are TRUE. Otherwise, the output is FALSE. Symbolically represented as $A \cdot B$.
• ✨ OR Gate: The output is TRUE if either one or both inputs are TRUE. The output is FALSE only if both inputs are FALSE. Symbolically represented as $A + B$.
• 🚫 NOT Gate: This gate inverts the input. If the input is TRUE, the output is FALSE, and vice versa. Symbolically represented as $\overline{A}$.
• 📊 Truth Tables: These tables summarize the behavior of logic gates for all possible input combinations.

  Input A	Input B	AND (A·B)	OR (A+B)
  0	0	0	0
  0	1	0	1
  1	0	0	1
  1	1	1	1

• 🧮 Boolean Algebra: This is the math behind logic gates. It uses values of TRUE (1) and FALSE (0) and logical operators like AND, OR, and NOT.

🧪 Practice Quiz

1. Which logic gate outputs TRUE only when both inputs are TRUE?
   1. AND
   2. OR
   3. NOT
   4. XOR
2. What is the output of an OR gate when both inputs are FALSE?
   1. TRUE
   2. FALSE
   3. Undefined
   4. High Impedance
3. Which logic gate inverts the input signal?
   1. AND
   2. OR
   3. NOT
   4. NOR
4. What is the output of an AND gate when one input is TRUE and the other is FALSE?
   1. TRUE
   2. FALSE
   3. High
   4. Low
5. What is the output of a NOT gate when the input is FALSE?
   1. TRUE
   2. FALSE
   3. 0
   4. 1
6. The expression $A \cdot B$ represents which logic gate?
   1. OR
   2. NOT
   3. AND
   4. XOR
7. The expression $\overline{1}$ (NOT 1) results in:
   1. 1
   2. 0
   3. TRUE
   4. FALSE