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4.3 Electric circuits

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Question 30

An incomplete truth table for a NOR gate is shown below:

Input AInput BOutput
00WWW
01XXX
10YYY
11ZZZ

What are the values of W,X,Y W, X, Y\,W,X,Y and ZZZ?

A

W=0,X=0,Y=0,Z=1W = 0, X = 0, Y = 0, Z = 1W=0,X=0,Y=0,Z=1

B

W=0,X=1,Y=1,Z=1W = 0, X = 1, Y = 1, Z = 1W=0,X=1,Y=1,Z=1

C

W=1,X=0,Y=0,Z=0W = 1, X = 0, Y = 0, Z = 0W=1,X=0,Y=0,Z=0

D

W=1,X=1,Y=1,Z=0W = 1, X = 1, Y = 1, Z = 0W=1,X=1,Y=1,Z=0

Markscheme

4.3 Electric circuits Questions

  1. IGCSE
  2. /Physics
  3. /4.3 Electric circuits

136 exam-style questions on CIE IGCSE Physics 4.3 Electric circuits, covering 4.3.1a Circuit diagrams and circuit components, 4.3.2a Series circuits, 4.3.2b Parallel circuits, 4.3.2c Current and potential difference in circuits, 4.3.2d Combined resistance of resistors in parallel, and 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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