spark plug 썸네일형 리스트형 Spark and Ignition (2) Spark and Ignition (2) Imagine a electric wire with 220 Volt electricity flowing it. Now, assume you cut it some point of the wire and keep the gap around 1 mm, then of course the current stops to flow and connected electric devices stop working. The reason that the current stops is the electric resistance of air is much higher than those of copper wire. Then how can we overcome this resistance .. 더보기 이전 1 다음