Sub-topic 1
2025 · National Quarterfinal
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Electrical characteristics of an ideal operational amplifier
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Sub-topic 2
2012 · National Preliminary
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The three terminals of a bipolar junction transistor
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Sub-topic 3
2012 · National Preliminary
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Relative physical sizes of a bipolar junction transistor's regions
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Sub-topic 4
2014 · National Final
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Op-amp inverting integrator: feedback resistor replaced by a capacitor
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Sub-topic 5
2014 · National Final
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Op-amp inverting differentiator: input resistor replaced by a capacitor
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Sub-topic 6
2014 · National Final
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Op-amp logarithmic amplifier: feedback resistor replaced by a diode
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Sub-topic 7
2016 · National One-Eighth
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The depletion layer separating the p and n regions of a p-n junction
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Sub-topic 8
2016 · National One-Eighth
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Reverse bias widening a p-n junction's depletion region
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Sub-topic 9
2016 · National One-Eighth
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Diffusion as the cause of the depletion layer in an unbiased p-n junction
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