Logic Gates

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.

(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.

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

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,

The logic states of inputs $A, B$ and $C$ are as follows, $A=B=C=0$ and $A=B=1, C=0$ then the logic states of output $D$ are

Which logic gate will give the results as shown in the following figure.

$A$ and $B$ are input and $C$ is output.

The logic circuit shown below has the input waveforms $A$ and $B$ as shown. Pick out the correct output waveform.

What is the minimum number of NOR gates required to form a OR gate?

Which of the following flip-flops does not have race problem?

The truth table of a certain logic circuit is shown below.

The logic gate represented by the above truth table belongs to

A digital signal possesses:

Where is NOR gate used?