Question

Looking for a proper answer to my circuits problem. I'm really confused with the first two parts, and the graphing part as well.

Here's the figure referenced in the question. (25.20)

Answer 1

Let the current started from 1.20 V battery is i1 and started from elementof is i2 If the current through 5.0 ohm resistor is I then i = i1 + i2 i2 = 50 mA V_2 ohm = (50 mA) (2.0 ohm) = 100 mV = 0.1 V elementof + 0.1 V = 1.20 V elementof = 1.20 - 0.1 = 1.1 V current through 5.0 oh resistor is i = 1.20/5.0 = 0.24 A = 240 mA the current through 5 = 4.00 ohm resistor is i1 then i1 = i - i2 = 240 mA - 50 mA = 190 mA

let the current started from 1.20 V battery is i1 and started from $\varepsilon$ is i2

if the current through 5.0 ohm resistor is i then

i = i1 + i2

i2 = 50 mA

V_2ohm = (50 mA) (2.0 ohm)

= 100 mV

= 0.1 V

$\varepsilon$ + 0.1 V = 1.20 V

$\varepsilon$ = 1.20 - 0.1

= 1.1 V

current through 5.0 oh resistor is

i = 1.20 / 5.0

= 0.24 A

= 240 mA

the current through the 4.00 ohm resistor is i1 then

i1 = i - i2

= 240 mA - 50 mA

= 190 mA