A NOR gate has two input I1 and l2,and one output terminal Y. Which of the following configuration (truth table) is INCORRECT for the NOR gate?
A NOR gate has two input I1 and l2,and one output terminal Y. Which of the following configuration (truth table) is INCORRECT for the NOR gate?
I1=0,I2=0,Y=1
I1=0,I2=0,Y=0
I1=1,I2=1,Y=0
I1=1,I2=0,Y=0
I1=0,I2=1,Y=0
The Correct Option is B
Approach Solution - 1
Given:
- NOR gate truth table options (A-E).
Step 1: Recall NOR Gate Logic
A NOR gate outputs 1 only when both inputs are 0. For all other input combinations, the output is 0.
Step 2: Evaluate Each Option
(A) \( I_1 = 0, I_2 = 0, Y = 1 \) → Correct (NOR output for 0,0).
(B) \( I_1 = 0, I_2 = 0, Y = 0 \) → Incorrect (should be 1).
(C) \( I_1 = 1, I_2 = 1, Y = 0 \) → Correct (NOR output for 1,1).
(D) \( I_1 = 1, I_2 = 0, Y = 0 \) → Correct (NOR output for 1,0).
(E) \( I_1 = 0, I_2 = 1, Y = 0 \) → Correct (NOR output for 0,1).
Conclusion:
The incorrect configuration is (B).
Approach Solution -2
1. Understand the NOR gate:
A NOR gate gives an output of 1 (HIGH) only when both inputs are 0 (LOW). Otherwise, the output is 0 (LOW).
2. Analyze the truth table configurations:
- (A) I1 = 0, I2 = 0, Y = 1: Both inputs are LOW, so the output should be HIGH. This is CORRECT.
- (B) I1 = 0, I2 = 0, Y = 0: Both inputs are LOW, so the output should be HIGH. This is INCORRECT.
- (C) I1 = 1, I2 = 1, Y = 0: At least one input is HIGH, so the output should be LOW. This is CORRECT.
- (D) I1 = 1, I2 = 0, Y = 0: At least one input is HIGH, so the output should be LOW. This is CORRECT.
- (E) I1 = 0, I2 = 1, Y = 0: At least one input is HIGH, so the output should be LOW. This is CORRECT.
Final Answer: The incorrect configuration is \(\boxed{B}\)
Top KEAM Physics Questions
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- Two capillary tubes A and B of diameter $1\, mm$ and $2\, mm$ respectively are dipped vertically in a liquid. If the capillary rise in A is 6 cm, then the capillary rise in B is
- In the circuit given in figure, 1 and 2 are ammeters. Just after key K is pressed to complete the circuit, the reading will be
- A plate has a length $ 5\pm 0.1\text{ }cm $ and breadth $ 2\pm 0.01\text{ }cm $ . Then the area of the plate is:
Top KEAM Semiconductor electronics: materials, devices and simple circuits Questions
- For a Zener diode
- Identify the mismatched pair from the following
- If the rms value of sinusoidal input to a full wave rectifier is $\frac{V_0} { \sqrt{2}}$ then the rms value of the rectifier?s output is
- In n- p-n transistor, the collector current is 10 mA. If 90% of the electrons emitted reach the collector, then
- The electrical conductivity of an intrinsic semiconductor at 0K is
Top KEAM Questions
- i.$\quad$ They help in respiration ii.$\quad$ They help in cell wall formation iii.$\quad$ They help in DNA replication iv. $\quad$They increase surface area of plasma membrane Which of the following prokaryotic structures has all the above roles?
- A body oscillates with SHM according to the equation (in SI units), $x = 5 cos \left(2\pi t +\frac{\pi}{4}\right) .$ Its instantaneous displacement at $t = 1$ second is
- The pH of a solution obtained by mixing 60 mL of 0.1 M BaOH solution at 40m of 0.15m HCI solution is
Kepler's second law (law of areas) of planetary motion leads to law of conservation of
- If $\int e^{2x}f' \left(x\right)dx =g \left(x\right)$, then $ \int\left(e^{2x}f\left(x\right) + e^{2x} f' \left(x\right)\right)dx =$
Concepts Used:
Logic Gates
AND Gate
It is the gate, where a circuit performs an AND operation. It has n number of input where (n >= 2) and one output.
OR Gate
It is the gate, where a circuit performs an OR operation. It has n number of input where (n >= 2) and one output.
NOT Gate
An inverter is also called NOT Gate. It has one input and one output where the input is A and the output is Y.
NAND Gate
A NAND operation is also called a NOT-AND operation. It has n number of input where (n >= 2) and one output.
NOR Gate
A NOR operation is also called a NOT-OR operation. It has n number of input where (n >= 2) and one output.
XOR Gate
XOR or Ex-OR gate is a specific type of gate that can be used in the half adder, full adder, and subtractor.
XNOR Gate
XNOR gate is a specific type of gate, which can be used in the half adder, full adder, and subtractor. The exclusive-NOR gate is flattened as an EX-NOR gate or sometimes as an X-NOR gate. It has n number of input (n >= 2) and one output.