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4.3.3 Action and use of circuit components

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Question 7

Combinations of logic gates are used when processing digital electronic signals.

Explain the difference between an analogue signal and a digital signal.

[2]

The table below shows the truth table for a logic gate $X$ .

Input $A$	Input $B$	Output
0	0	1
0	1	1
1	0	1
1	1	0

State the name of logic gate $X\,$ and describe its standard symbol.

[2]

Logic gate $Y\,$ is identical to logic gate $X$ . Explain how a combination of gates $X\,$ and $Y\,$ can be connected to function as an AND gate. Label the inputs $A\,$ and $B$ , and the final output $Q$ .

[3]

Markscheme

4.3.3 Action and use of circuit components Questions

IGCSE
Physics
4.3.3 Action and use of circuit components

67 exam-style questions on CIE IGCSE Physics 4.3.3 Action and use of circuit components. Each one has a worked solution and a mark scheme showing where the marks go.

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