Question

Determine the voltage across each resistor and the three currents (with direction).

120 Ω A 20V 30 Ω ΛΑ 60 V 60Ω Β.

I got:

Am I right?? Not sure if I did this properly...

Answer 1

120 Ω A W 20V Vi1 30 Ω MW 12 60 V 60Ω B 13

i1 = i2 + i3

in upper loop

20 - 120 * i1 - 30 * i2 = 0

in lower loop

30 * i2 - 60 * i3 - 60 = 0

from upper loop equation

20 = 120 ( i2 + i3) + 30 * i2

20 = 150 * i2 + 120 * i3 --------- (1)

60 = 30 * i2 - 60 * i3 ------------- (2)

solve (1) and (2)

i2 = 0.6666 A

i3 = - 0.6666 A ( this means i3 is going up)

i1 = 0 A

(yes, your answers are perfectly fine)