Logic Gates

It is representing:

The logic gate given below represents a

The same input signal is applied to both the (input) terminals of a given logic gate.

If the output is the(i) same as the (common) input signal

(ii) inverted with respect to the (common) input signal,

Identify the logic gate/s involved in each case.

Write down the output at $\mathrm{X}$ for the inputs $A\mathit{=}0,B\mathit{=}0$ and $A=1, B=1$

Identify the logic gates marked $P$ and $Q$ in the given logic circuit.

Identify the logic gates marked P and Q in the given logic circuit.

Write down the output at X for the inputs A = 0, B = 0 and A = 1, B = 1.

(i) Identify the logic gates marked P and Q in the given logic circuit.

The inputs A and B are inverted by using two NOT gates and their outputs are fed to the NOR gate as shown below.


Analyse the action of the gates (1) and (2) and identify the logic gate of the complete circuit so obtained.

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?

The logic circuit shown in the figure is equivalent to

The expression $y$ in the following circuit is

The circuit element represented by the following figure

is

A digital OR function is to be implemented using NAND gates only. What is the minimum number of NAND gates required?

Which of the following functions does the digital circuit shown in the figure implement? All gates are NAND gates.

In the following logic circuit, $P$ and $Q$ are inputs and $R,$ the output.

The circuit is equivalent to a

In the circuit the output $y$ becomes zero for the inputs

The gate for which the output is high, if atleast one input is low is

Which of the following combinations has this truth table?
$\begin{array}{|lll|}\hline P& Q& Z\\ 0& 0& 0\\ 0& 1& 1\\ 1& 0& 1\\ 1& 1& 1\\ \hline\end{array}$

Given combination of $NAND$ gates will be equivalent to,