examples are coal, oil and natural gas fuel material used to make heat energy fuse a safety device which melts and breaks the circuit when too strong a current is flowing generator equipment made up of magnets and copper wire;
(examples; are; coal) (a safety device; breaks; the circuit) (when too strong a current; flowing; ) (a safety device; melts; )
examples a safety device when too strong a current a safety device
are breaks flowing melts
coal
the circuit