An experimental micro-heating element integrated into a silicon-on-insulator (SOI) sensor chip has a resistance of 450 Ω at its steady operating temperature. The element is designed to safely dissipate thermal energy at a constant rate of 180 mW.
What is the potential difference across the micro-heating element when it is operating at this power?
0.02 V0.02\text{ V}0.02 V
9.0 V9.0\text{ V}9.0 V
81 V81\text{ V}81 V
280 V280\text{ V}280 V
