- #36
Femme_physics
Gold Member
- 2,550
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If you choose to let I2 "leave" A, then you must switch its sign in the second equation, since it will be going "toward" the plus pole of the 10 V battery.
Ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh. I get it now :) It depends on which pole of the battery it's going to! And there are 2 batteries! What a complex problem, yet I learn a lot from this one problem (thanks to you!).
Okay, I'll get cracking at solving those 3 equations.