Because a bipolar junction transistor has a negative temperature coefficient,it may be damaged by

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A negative temperature coefficient means that as the temperature of the bipolar junction transistor increases, the base-emitter voltage decreases. This can lead to thermal runaway, where the increasing current through the transistor due to the decreasing voltage causes even more heating and further decreases the voltage, potentially leading to damage. Static charges, improper grounding, and improper coupling can all cause damage to a transistor, but they are not specifically related to its temperature coefficient.

Because a Bipolar Junction Transistor Has a Negative Temperature Coefficient,it