Unveiling PTC Magic: Why Resistance INCREASES with Temperature
If you've ever used a modern space heater, a hair dryer, or enjoyed the quick warmth from an electric vehicle, you've likely benefited from PTC (Positive Temperature Coefficient) technology. Its killer feature? It’s self-regulating and incredibly safe. It physically can't overheat. But how? The answer lies in its most counterintuitive behavior: its resistance increases as its temperature rises.
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