What is the resistance?
Sorry English is not my first language. I need help in solving for the resistance of R. What method should I use?
- that the terminal voltage (?) is 13 V and
- that the current through the resistor of 20 Ohm is 0,35A.
- billrussell42Lv 72 months agoFavorite Answer
voltage across R is the same as that across the 20 Ω, E = IR = 20 x 0.35 = 7 volts
voltage across 11 Ω is 13–7 = 6 volts
current thru 11 Ω is 6/11 amps or 0.545 amps
current thru R is 0.545 – 0.35 = 0.195 amps
R = E/I = 7/0.195 = 35.8 Ω
below is easier to read.
- PhilomelLv 72 months ago