Logic Gates
Trending Questions
Q. Figure gives a system of logic gates. From the study of truth table it can be found that to produce a high output (1) at R, we must have 

- X = 0, Y = 1
- X = 1, Y = 1
- X = 1, Y = 0
- X = 0, Y = 0
Q. To get an output Y = 1 from the circuit shown in figure the inputs A, B and C must be respectively 

- 1, 0, 1
- 1, 1, 0
- 1, 0, 0
- 0, 1, 0
Q.
Given below are symbols for some logic gates (1) (2) (3) (4) The XOR gate and NOR gate respectively are [AFMC 1994]
Given below are symbols for some logic gates (1) (2) (3) (4) The XOR gate and NOR gate respectively are [AFMC 1994]
Q. How many NAND gates are used in an OR gate?
- Four
- Two
- Three
- Five
Q.
The truth table shown in figure is for [Pb. CET 1998] \( \begin{array}{lllll}\text { A } & 0 & 0 & 1 & 1\end{array} \) \( \begin{array}{lllll}\text { B } & 0 & 1 & 0 & 1\end{array} \) \( \begin{array}{lllll} Y & 1 & 0 & 0 & 1\end{array} \)
The truth table shown in figure is for [Pb. CET 1998] \( \begin{array}{lllll}\text { A } & 0 & 0 & 1 & 1\end{array} \) \( \begin{array}{lllll}\text { B } & 0 & 1 & 0 & 1\end{array} \) \( \begin{array}{lllll} Y & 1 & 0 & 0 & 1\end{array} \)
Q.
Which of the following gates will have an output of 1