I’ll try to help my best “ a troubled mind caused me to walk abroad” i think he means while his mind is troubled or he has a lot on his mind he is pacing as one would tend to do when stressed
Not sure how it's an English question, but Batteries have three parts, an anode (-), a cathode (+), and the electrolyte. The cathode and anode (the positive and negative sides at either end of a traditional battery) are hooked up to an electrical circuit. The chemical reactions in the battery causes a build up of electrons at the anode.
