A spark plug has a metal threaded shell, electrically isolated from a central electrode by a porcelain insulator. The central electrode, which may contain a resistor, is connected by a heavily insulated wire to the output terminal of an ignition coil or magneto.
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Trump claimed that economic growth has âneverâ been below zero until last quarterâs drop, which is far from true. It has been below zero 42 times since 1946. He said âthere are no jobsâ to be had. In fact, there were 5.4 million job openings recorded at the end of April, the most in 15 years.