NS103: Exam #3
voltage measure of difference of potential (electrical potential)
current movement of electrical charge
amperage electrical flow rate
Resistance/Impedence restriction of electrical flow
circuit path of flow
circuit element object within the circuit (light)
fault current through an unintended direction
electricity must have a clear path from source to ground
electricity flows through _______ conductors
- copper
- silver
What are some good conductors? - aluminum
- gold
- seawater
, NS103: Exam #3
- Rubber
Insulators are made of materials that - Plastic
do not conduct well such as? - Wood
- Ceramics
current (amp) x duration
formula for shock severity
- affected by resistance
- thermal radiation / intense light
what is arc blast?
- pressure wave blast
has a thin strip of metal that will melt if to
much current flows through.
fuses - needs to be replaced once overloaded.
- protects circuits from overheating.
- weak links in the system
a switch that automatically opens if the
current is too high
circuit breakers
voltage measure of difference of potential (electrical potential)
current movement of electrical charge
amperage electrical flow rate
Resistance/Impedence restriction of electrical flow
circuit path of flow
circuit element object within the circuit (light)
fault current through an unintended direction
electricity must have a clear path from source to ground
electricity flows through _______ conductors
- copper
- silver
What are some good conductors? - aluminum
- gold
- seawater
, NS103: Exam #3
- Rubber
Insulators are made of materials that - Plastic
do not conduct well such as? - Wood
- Ceramics
current (amp) x duration
formula for shock severity
- affected by resistance
- thermal radiation / intense light
what is arc blast?
- pressure wave blast
has a thin strip of metal that will melt if to
much current flows through.
fuses - needs to be replaced once overloaded.
- protects circuits from overheating.
- weak links in the system
a switch that automatically opens if the
current is too high
circuit breakers
