You have installed a Zener diode in parallel...

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Question 1 of 205eccefa5bacbc34ba4d4865c

You have installed a Zener diode in parallel with a load. While measuring the voltage across the Zener diode it is found that it does not change as the current through the load increases. In terms of Zener diode operation, what does this mean?

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🔍 Key Concepts

• Zener diode regulation region and its role as a voltage regulator • How voltage behaves across a properly biased Zener diode when current changes within its operating range • The difference in circuit behavior if a diode is open vs shorted vs properly regulating

💭 Think About

• When a Zener diode is used in parallel with a load as a regulator, what is its main job with respect to voltage? • If the load current increases but the voltage across the Zener remains essentially constant, what does that say about whether the Zener is in its normal operating (regulation) region? • How would the measured voltage behave if the Zener were open-circuited or short-circuited instead?

✅ Before You Answer

• Compare the described behavior with the ideal voltage regulator characteristic (constant voltage over a range of currents). • Ask yourself what voltage you would expect to measure if the Zener were open (no conduction) or shorted (full conduction, almost zero volts). • Ensure you understand that in normal Zener operation, voltage stays nearly constant while current varies within specified limits.

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