Electronics, transistor
In transistor, we know Ib+Ic=Ie (base + collector = emitter)
Also we know Ie ~ Ic (because Ic >> Ib)
But, why Ic >> Ib ???
Please not using mathemtically units to prove~~
Please using atom or physical method to prove~
Thank you! ☆

建议这位师哥将头像改掉，不然没有人会回问题的----让人压抑啊！