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science,math and English

No.185　12/09/22 03:36
名無し0 ( 50代 ♂ ) あ+あ-

【FET】

《Convert little change of voltage into big one of electric current》

There are three poles in the FET.They stand in a line.The orders of the poles are,from its left,source,gate,and drain.😃

When increasing voltage on the gate,and making big electric current flow between the source and drain,little change of the voltage on the gate makes electric current which flows between the source and drain change so much.😃

In short,while the transistor amplifys 増幅 change of the electric current,the FET converts little change of voltage into big electric current,and amplifys.😃

The FET has little electric consumption,moreover when amplifying electric current,it has little noise.How to produce the FET is easy,and it has varied excellent characteristics.🎊

Therefore we make use of both the transistor and FET for various electric appliances widely.☝