Jelasin soal Beulitan  dalam bahasa sunda dong

Beulitan mangrupa runtuyan puteran (loop).

A coil is made of materials, usually rigid, which can be fashioned into a spiral or helical shape.  Flexible materials like wire, rope, hose, or cable can also be coiled into empty loops, or wound around a central drum or spindle.

Some common applications of coils include:

A coil spring is the most common type of spring.

A set of stairs fashioned in a coil shape, which are called spiral staircases.

A Slinky is a coil-shaped toy.

Evaporator coils are used in air conditioning and other refrigeration cycles.

A boiler coil is an element in a water heater.

A Alpine coil, one of several coil knots, is a method for carrying a rope.