Advertisements
Advertisements
प्रश्न
Show that \[AB + \overline {AB }\] is always 1.
Advertisements
उत्तर
Given:
AB = y
∴ \[X = y + \overline{y}\]
X = 0 + 1
= 1
For y = 1,
X = 1 + 0
= 1
Thus, X = 1 for all values of y = AB.
APPEARS IN
संबंधित प्रश्न
Write the truth table for the combination of the gates shown. Name the gates used.
Write the truth table for the circuits given in following figure consisting of NOR gates only. Identify the logic operations (OR, AND, NOT) performed by the two circuits.
(a)
(b)
The arrangement given below represents a logic gate :
Copy the following truth table in your answer booklet and complete it showing outputs at C
and D.
| A | B | C | D |
| 0 | 0 | ||
| 1 | 0 | ||
| 0 | 1 | ||
| 1 | 0 |
You are given a circuit below. Write its truth table. Hence, identify the logic operation carried out by this circuit. Draw the logic symbol of the gate it corresponds to.
The following figure shows the input waveforms (A, B) and the output waveform (Y) of a gate. Identify the gate, write its truth table and draw its logic symbol.
Design a logical circuit using AND, OR and NOT gates to evaluate \[A \overline { BC } + B \overline{ CA }\] .
Why are NOR gates considered as universal gates?
The outputs of two NOT gates are fed to a NOR gate. Draw the logic circuit of the combination of gates. Write its truth table. Identify the gate equivalent to this circuit.
You are given a circuit as shown in the figure, which consists of the NAND gate. Identify the logic operation carried out by the two. Write the truth table. Identify the gates equivalent to the tow circuit.
The current obtained from a simple filterless rectifier is
A radar is sending out pules of 1 micro second duration at interval of 100 micro-second. The range of the radar is
The output of 2-input or gate is zero only when its
Which logic gate is similar to a function of two series switches?
The truth table for the following logic circuit is:
How would you set up a circuit to obtain NOT gate using a transistor?
In the logic circuit shown in the figure, if input A and B are 0 to 1 respectively, the output at Y would be 'x'. The value of x is ______.
The given figure shows the waveforms for two inputs A and B and that for the output Y of a logic circuit. The logic circuit is ______.
Which one of the following is the Boolean expression for NOR gate?
The output (Y) of the given logic implementation is similar to the output of an/a ______ gate.
