Which outcome occurs when thermal runaway initiates in a transformer's oil-filled tank?

💡 Explanation

The pressure relief valve activates due to increased internal pressure from oil vaporization; the mechanism is gas expansion caused by overheating. This occurs because the fault current raises the oil’s temperature leading to vaporization, therefore, relieving pressure is crucial rather than insulation failure or condenser issues.

• In a MOSFET-based amplifier circuit subjected to electrostatic discharge, which mechanism leads to gate oxide breakdown?
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