Electrical Installation Basics

Front

Voltage

Back

Electrical potential difference

Front

Current

Back

Flow of electric charge

Front

Resistance

Back

Opposition to current flow

Front

Conductor

Back

Material allowing current

Front

Circuit

Back

Path for electrical flow

Front

Insulator

Back

Material blocking current

Front

AC

Back

Alternating current

Front

DC

Back

Direct current

Front

Grounding

Back

Safety from electric shock

Front

Fuse

Back

Overcurrent protection device