Oak ScienceTest · Science

Interpreting I–V graphs

The starter and exit quiz of the lesson “Interpreting I–V graphs”, from the unit “Circuit components” (Year 10 Science) by Oak National Academy.

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Oak National Academy

12 questions

What is the function of a diode?
What does it mean when a diode is in reverse bias?
Which of these has a symmetrical I-V graph for both positive and negative p.d.?
Which of the following correctly describes how a fuse wire works?
What is the resistance of a diode if it allows 0.16 A to flow when the p.d. across it is 0.8 V?
How does this component work?
The characteristics of which component are shown by this I-V graph?
The characteristics of a diode are shown by this I-V graph. What is its threshold voltage?
Which component has a current that increases as the p.d. across it increases, but at higher p.d.s the current does not increase as much as expected?
Which component has an I-V graph that shows the current is directly proportional to the p.d. across it?
What is the most appropriate fuse rating for a device that normally uses a current of 9 A?
What happens inside a metal wire with a bigger current through it?

License: OGL