Logic gates (OR, AND, NOT, NAND, NOR)

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The output (Y) of the given logic implementation is similar to the output of an/a ________ gate. Answer: 4. NOR Key idea: write the output of each gate in Boolean form and simplify. The upper gate is a NOR gate with inputs A and B: A+B .... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
A logic circuit provides the output Y as per the following truth table :| A | B | Y ||---|---|---|| 0 | 0 | 1 || 0 | 1 | 0 || 1 | 0 | 1 || 1 | 1 | 0 |The expression for the output Y is : Answer: 4. B Key idea: Read the truth table to see what Y depends on. Y is 1 when B=0 and 0 when B=1 , whatever A is (rows 1 and 3, and rows... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
The output (Y) of the given logic gate is similar to the output of an/a : Answer: 1. AND gate Key idea: Find the output of each first-stage gate, then apply the final NOR gate. With the inputs of each gate joined,... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
For the following logic circuit, the truth table is: Answer: 3. A B Y: 0 0 0; 0 1 1; 1 0 1; 1 1 1 The inputs A and B pass through NOT gates, and the results go into a NAND gate. Y=bar A·bar B=A... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
The truth table for the given logic circuit is : Answer: 4. Truth table (A B C): 0 0 1; 0 1 0; 1 0 1; 1 1 0 Trace the circuit. The upper NAND gets A and B: Y₁=A· B . The lower NAND gets bar... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
For the given circuit, the input digital signals are applied at the terminals A, B and C. What would be the output at the terminal y ? Answer: 3. Output waveform (3): constant 5 V Key idea: from the circuit, y=A· B+B· C (AND of A,B ORed with NAND of B,C). IntervalABCA.BNAND(... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
For the logic circuit shown, the truth table is :(figure: A and B each pass through a NOT gate; both outputs feed a NOR-type gate (OR gate with output bubble) giving Y) Answer: 1. A B Y: 00->0, 01->0, 10->0, 11->1 From the figure, each input goes through a NOT gate, and the outputs feed a NOR gate (OR with a... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
The correct Boolean operation represented by the circuit diagram drawn is : Answer: 3. NAND In the circuit the two switches A and B are in series between the LED node and ground. Taking the switch position 1 as close... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
In the combination of the following gates the output Y can be written in terms of inputs A and B as Answer: 3. A·B+A· B Read the figure: the upper AND gate gets A and overline B ; the lower AND gate gets overline A and B . An OR gate joins... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
The given electrical network is equivalent to : Answer: 2. NOR gate Key idea: trace the logic step by step. First gate is a NOR: output A+B . Second gate is a NOR with both inputs joined,... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
What is the output Y in the following circuit, when all the three inputs A, B, C are first 0 and then 1? Answer: 2. 1, 0 Gate P is an AND gate on A and B; gate Q is a NAND gate whose inputs are P's output and C. So Y=(A· B)· C . A = B = C = 0: P... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer
To get output 1 for the following circuit, the correct choice for the input is : Answer: 4. A = 1, B = 0, C = 1 Key idea: from the circuit, Y=(A+B)· C : A and B go to an OR gate, and its output goes to an AND gate with C.... Logic gates (OR, AND, NOT, NAND, NOR) 1 answer