In a simple series circuit, using Ohms law, with a known current of 5 amps, and a resistive load of 30 watts, what is the voltage drop?
回答 (4)
Ohm's law: V = IR
Thus, P = I²R = I•IR = IV
Then, V = P/I
Voltage drop, V = P/I = 30/5 = 6 V
(A^2)*(R) = 30W
R = (30/25)Ohms
Using Ohm's law:
(5A)*[(30/25)Ohms] = 6 Volts
收錄日期: 2021-04-24 00:41:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20170913021325AALxt1X
檢視 Wayback Machine 備份