🔍 Key Concepts

• Effect of temperature on electronic component lifespan (thermal stress and aging) • Relationship between heat, resistance, and failure rates in electronics • Why cooling and ventilation are used in electronic equipment enclosures

💭 Think About

• Think about what usually happens to electronic circuits when they run too hot for a long time: does their life generally increase or decrease? • Consider why manufacturers specify a maximum operating temperature on data sheets—what are they trying to prevent? • If you design an equipment room, do you normally try to heat it up, cool it down, or ignore temperature as long as humidity is controlled?

✅ Before You Answer

• Identify which option matches the general rule: higher temperature = faster aging/failure for most electronic parts. • Eliminate any choices that claim temperature is unimportant or that higher temperature improves life. • Check that the remaining choice is consistent with why fans, heat sinks, and air conditioning are used with electronic equipment.