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P7: Quiz 10
P7: Quiz 10
Click here for a printable PDF of the graphs in this quiz.
1)
a) What does DC stand for?
b) Draw the voltage-time graph for a DC supply on the graph below.
1)
a) What does DC stand for?
b) Draw the voltage-time graph for a DC supply on the graph below.
2)
a) What does AC stand for?
b) Draw the voltage-time graph for an AC supply on the graph below.
2)
a) What does AC stand for?
b) Draw the voltage-time graph for an AC supply on the graph below.
3)
a) Is household mains electricity DC or AC?
b) What is the potential difference of household mains electricity?
c) What is the frequency of household mains electricity?
4) There are three different wires in a three-pin plug;
- a brown wire
- a blue wire
- a green & yellow
5) The diagram below shows a plug in black and white.
Give the name of the wire that goes to the…
a) left
b) right
c) top
6)
a) What material is the casing of the plug made from and why?
b) What is the role of a fuse in a plug?
7)
a) A man touches the live wire in a plug and experiences an electric shock. Explain why the man experiences an electric shock. Talk about the potential difference of the man and the live wire.
b) The wire/ plug/ socket is now turned off. Could the man still experience an electric shock if he touches the live wire? Explain your answer.
a) left
b) right
c) top
6)
a) What material is the casing of the plug made from and why?
b) What is the role of a fuse in a plug?
7)
a) A man touches the live wire in a plug and experiences an electric shock. Explain why the man experiences an electric shock. Talk about the potential difference of the man and the live wire.
b) The wire/ plug/ socket is now turned off. Could the man still experience an electric shock if he touches the live wire? Explain your answer.