Which component primarily dissipates heat from electronic components?

• A. Heatsink
• B. Capacitor
• C. Inductor
• D. Transformer

Answer: (A)

Heat must be removed from hot electronic parts to prevent failure and keep performance stable. A heatsink is designed to maximize heat transfer from the device into the surrounding air by using a highly conductive metal with a large surface area and fins. This setup accelerates conduction into the heatsink and convection from its surface, carrying heat away efficiently. Other components like capacitors, inductors, and transformers are energy storage or transfer devices; heat they generate is usually a byproduct of resistance or core losses, not the purpose of the part. So the component that primarily dissipates heat is the heatsink.