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- 1. Multiple Choice
What is the name of the pin labelled 2 in the diagram?
Earth
Neutral
Live
- 2. Multiple Choice
What colour is the Earth wire in a plug?
Red
Red and black
Green
Green and yellow
- 3. Multiple Choice
Which is the live wire in the diagram?
Number 2
Number 3
Number 4
Number 5
- 4. Fill in the Blank
What is the potential difference of the mains electricity supply? _________ volts
- 5. Fill in the Blank
What is the frequency of the mains electricity supply? (do not worry about the units here)
- 6. Fill in the Blank
What is the unit of frequency?
- 7. Multiple Choice
What does the graph on the left show?
direct current
alternating current
- 8. Multiple Choice
Which diagram shows an oscilloscope trace of alternating current?
left hand diagram
right hand diagram
- 9. Multiple Choice
Imagine the diagrams are numbered 1,2,3,4 from left to right.
Which is the symbol for a fuse?
1
2
3
4
- 10. Multiple Choice
Imagine the symbols are numbered 1,2,3,4 from left to right.
What is number 3 the symbol for?
A variable resistor
A fuse
A lamp
A fixed resistor
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