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vatic
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加入日期: Dec 2004
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2.應該是P=V*I

4. Vin=12V R=50 RL=80

=> I=92.307mA
V(R)=92.307mA*50=4.615V
V(RL)=92.307mA*80=7.384V
舊 2007-04-15, 09:48 PM #4
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