Physics · May / June 2022 · Paper 41 · Question 9
0625
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The question as text
Combinations of logic gates are used when digital signals are processed.
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9(a)[2]
digital (signal) consists of 1(s) and 0(s) / high value and low
analogue (signal) is (continuously) variable (in magnitude)
9(b)[1]
NOR (gate) and
9(c)[2]
A
Q
B
C1 (i.e. NOR gate symbol with two inputs joined seen)
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