(example of circuit diagram(s) to be provided here).
in electric circuits, there are active & passive elements:
- active element might be accumulator during power discharge,
- passive element might accumulator during power charging.
on diagrams, arrows' directions mean positive direction of current's flow.
- positive current is current flowing in direction positive flow, as noted with arrows,
- negative current is current flowing in opposite direction to positive flow, as noted with arrows.
positive voltage is shown using arrow's direction.
with positive voltage:
- negative pole is always where arrow-line begins,
- positive pole is always near arrow-head.
amperage & voltage notation is complete only with arrow-notation.
without complete notation, amperage & voltage can't be calculated or computed properly enough.
(to be corrected & elaborated if i can, as it's needed & neccessary).