🔍 Key Concepts

• Function of a heat sink in electronics • How solid-state components (like transistors or ICs) handle heat • Difference between thermal protection and mechanical/vibration protection

💭 Think About

• When a component is bolted or clipped to a metal plate or chassis, what physical quantity is that metal mainly helping to control? • Which of the options specifically relates to moving heat away from something that can overheat? • Could a metallic mass effectively stop all vibration or mechanical shock, or is it more commonly used for another protective purpose in electronic circuits?

✅ Before You Answer

• Identify which choice directly describes removing excess heat from components • Ask yourself: Do magnets or magnetic fields normally get conducted away by a plain metal block or plate? • Separate in your mind: thermal protection vs. mechanical/vibration protection and match the correct term to the function of the metal mass