at BJT,why does the collector current have a value while base current =0?

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at BJT,why does the collector current have a value while base current =0?

2006-10-18 07:42:51 · 2 answers · asked by had h 1 in Science & Mathematics ➔ Physics

2 answers

Sorry but I need you to define BJT. Without knowing I might guess a bit of leakage.

2006-10-18 07:59:27 · answer #1 · answered by sojsail 7 · 0⤊ 0⤋

It doesn't really. The base current is very low compared to the collector current so it can be treated as ib=0 sometimes to simplify calculations. The actual base current is usually around 1uA or less.

2006-10-18 08:01:13 · answer #2 · answered by Philip_Comer 3 · 0⤊ 0⤋