الإنجليزية - الإنجليزية
تعريف barretter في الإنجليزية الإنجليزية القاموس.
- A ballast resistor
- The original form consisted of an extremely fine platinum wire loop attached to terminals and inclosed in a small glass or silver bulb
- A thermal cymoscope which operates by increased resistance when subjected to the influence of electric waves
- In a later variety, called the liquid barretter, wire is replace by a column of liquid in a very fine capillary tube