| A | B |
|---|
| electrons | subatomic particles that carry a negative charge |
| voltage (V) | the measure of electrical pressure |
| amperage (A) | the measure of the number of electrons flowing |
| wattage (W) | measurement of the amount of electrical energy or power in the arc |
| anode | the positive side of an electrode arc |
| cathode | the negative side of an electrode arc |
| output | the amount of energy being produced by a machine |
| open circuit voltage | voltage at the electrode before striking an arc (with no current being drawn) |
| operating voltage | the voltage at the arc during welding |
| magnetic flux lines | the lines of magnetic force created by the flow of electrons |
| step-down transformer | lowers voltage of a power source to a more usable voltage for a particular tool |
| inverter | smaller welding machine with more portability and efficiency |
| rectifier | allows current to flow in one direction only |
| duty cycle | the percentage of time a welding machine can be used continuously |
| welding cables/welding leads | used for welding, are flexible, well insulated, and the correct size for the job |
