Final answer:
A potential disadvantage of embedding a resistor in a material is the generation of heat, which can damage the material and affect its performance.
Step-by-step explanation:
A potential disadvantage when a resistor is embedded in a material is that it can generate heat. When a current flows through a resistor, it dissipates electrical energy as heat. This heating effect can be significant if a large current is drawn or if the resistor is not properly cooled. The heat generated can potentially damage the material and affect its performance. For example, in electronic devices, excessive heat can lead to component failure and reduced lifespan.