24.1 – Investigating Current and Voltage in a Semiconductor Diode (Leaving Cert Physics): Quizzes

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24.1 – Investigating Current and Voltage in a Semiconductor Diode
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What is the primary function of a semiconductor diode?

Allow current in one direction only

What is the junction voltage for a silicon diode?

Approximately 0.60.6 V

Which ammeter is used to measure forward-biased current?

Milliammeter (00-2020 mA)

What is the typical maximum safe forward current for most diodes?

Approximately 5050 mA

What is the typical magnitude of reverse bias leakage current?

Less than 11 μA

In forward bias, where does the positive terminal connect?

To the diode's anode

What voltage increment is used when taking forward bias measurements?

Approximately 0.20.2 V

How does current change once junction voltage is exceeded?

Increases exponentially

Why are different ammeters needed for forward and reverse bias?

Current levels differ by 3 magnitudes

What happens to a diode in the reverse bias breakdown region?

Destructive current damages component

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