Welcome to the Quiz!
This quiz contains 5 questions from a mix of 1 subtopics.
Which instrument is used to measure the current in the circuit?
variable resistor
ammeter
power supply
voltmeter
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Which of the following components would result in a I-V graph which is a straight line through the origin?
resistor
filament lamp
diode
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Which of the following components allows current to flow in the positive direction but not in the negative direciton?
diode
resistor
filament lamp
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Draw the I-V characteristic for a filament lamp.

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Why is it important to turn the power supply off between readings?
to prevent wasting electricity
turning off the circuit would make all the other results invalid and you would need to start again
to prevent the temperature of the circuit from increasing
to avoid getting an electric shock when moving the variable resistor
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