Competitive Thinking

To get $1$ as the output from the circuit shown in the figure, the input must be,

In the following combinations of logic gates, the outputs of $\mathrm{(i)}$, $\mathrm{(ii)}$ and $\mathrm{(iii)}$ are, respectively,

Identify the true statement of $OR$ gate.

The inputs to the digital circuit are shown below. The output $Y$ is,

The circuit diagram shows a logic combination with the states of outputs $X\text{,} Y \text{and} Z$ given for inputs $P\text{,} Q\text{,} R$ and $S$ all at state $1$. When inputs $P$ and $R$ change to state $0$ with inputs $Q$ and $S$ still at $1$, the states of outputs $X\text{,} Y \text{and} Z$ change to,

For the given logic circuit, the output will be zero $I$ under which of the following conditions?

The truth table for system of four $NAND$ gates shown in the figure is,

The truth table of the combination of the logic gates shown in the figure is,