Discussion
Which consequence follows from reversed battery polarity?
Answer: A
Semiconductors conduct heavily in reverse and destroy themselves within seconds, taking control units and the alternator with them. Fuses are far too slow to protect them. It is one of the most expensive errors possible. Checking which component actually carries the load settles most questions of this kind at once. Naming what changes and what stays the same is the reliable route through questions of this shape. Reading the definition literally, rather than recalling a formula, is the reliable route through questions of this shape.
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