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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President Donald Trump has many ideas on how to cut costs that came together with the White House with the latest one being his wifeâs office employees. The number of employees... Share this:President Donald Trump has many ideas on how to cut costs that came together with the White House with the latest one being his wifeâs office employees. The number of employees in Melania Trumpâs office has reached a total number of 20 people. Anita McBride, who worked under the last three republican presidents and was [â¦] Menu