26. Transistor Reliability

Question.7

Girish is testing a circuit where a transistor is used to switch a load (relay, motor, or LED strip).
The circuit works correctly, but after a few seconds the transistor becomes very hot, even though nothing looks shorted.

What is the reason for this overheating?

The transistor is not getting enough base drive to turn fully ON
The transistor package is too small to look professional
The load is connected correctly, so heating is normal
The transistor is placed too close to other components

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