of 30 amperes flows through a system with 16 ohms resistance and electromotive force of 120 volts, find the current that a 200-volt electromotive force will send through the system. thankss.
2007-07-08 23:51:09 · 4 answers · asked by Ocean Princess 1 in Science & Mathematics ➔ Physics
Wrong or incomplete question.
2007-07-09 00:10:04 · answer #1 · answered by oregfiu 7 · 1⤊ 0⤋
I is proportional to E/ R
i.e. I = k E/ R where k is the constant of proportionality.
Given I = 30 A and R = 16 and E = 120.
Therefore k = IR/E = 30 x 16 / 120 = 4.
Now I = 4 E /R.
E = 200 and R = 30
I = 4 x 200 / 30 = 26.67 A.
2007-07-09 01:14:21 · answer #2 · answered by Pearlsawme 7 · 0⤊ 0⤋
I=KE/R
30=K(16)/120
30=2/15
2016-10-18 23:22:47 · answer #3 · answered by loza takashi komuro 1 · 0⤊ 0⤋
Ohms law I=E/R or E=I*R or R=E/I
if 120=16x30*0.25 then 200/(16x0.25)=50.
2007-07-09 00:13:49 · answer #4 · answered by datoli 3 · 1⤊ 0⤋