Set the variac to 0 V. Turn on the variac. Slowly turn up the variac. The wire will heat and begin to expand (sag). Turn the variac to 0 V. The wire should contract and rise. Turn off the variac. If ...
Without the earth wire, if a fault occurs and the live wire becomes loose, there is a danger that it will touch the metal case. The next person who uses the appliance could get electrocuted.
Commissions do not affect our editors' opinions or evaluations. Wire fraud occurs when you use electronic communications to perpetrate a fraud scheme. It is a federal offense that can result in ...
Magnet wire is used to create coils that, when energized, produce an electromagnetic field. Typically, these insulated electrical conductors are made of copper or aluminum. Magnet wire is available in ...