# 1. the current i varies directly as the electromotive force E and inversely as the resistance R. If in a system a current of 20 amperes flows through a resistance of 20 ohms with an electromotive force of 100 volts, find the current that 150 volts will send through the system.

1
by walix2014

• Brainly User
2015-09-18T07:41:32+08:00

### This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
I = kE
R
I= 20 amp;     E = 100 volts;     R= 20 ohms:     1 amp = volt
ohm
20 amp = k (100 volts)
20 ohms

(20 volts) ×  (20 ohms) = k
ohms        (100 volts)

400/100 = k
k = 4

If Force is 150 volts, using the the same Resistance 20 ohms, find the current at constant k=4.

I = kE
R

I = (4) (150 volts)
(20 ohm)
I =  600 volts
20 ohms

I = 30 volts/ohms,      where: amps (I) = volts/ohms

I (Current) = 30 amps