| A | B |
|---|
| Coil | has a number of turns of wire |
| Continuity | Uninterrupted electrical path for current flow |
| Decibel | expresses a relative difference in power between electric signals |
| Frequency | the number of cycles completed each second |
| Ammeter | Used to measure current |
| Voltmeter | measure emf |
| Ohmmeter | measures the resistance of a circuit or component |
| Multimeter | (VOM) Volt-ohm-milliammeter |
| Megger | used for measuring resistances of several million ohms |
| Power factor | True power divided by Apparent power |
| Wiggy | Pocket voltage tester |
| Wattmeter | Power measuring meter |
