xaos
Newbie level 3
I could really use some help. I am taking an electronics test, and this is one of the questions:
Direct current would NOT ordinarily be used in which of the following?
A. Ships
B. Airplanes
C. Battery Charging
D. Arc Welding
E. Electric clocks
Now I may be totally crazy, but don't all on the list use or are capeable of using both AC & DC? I've pretty much narrowed this down to either battery charging or arc welding, but both of these have AC & DC versions... Battery chargers are typically run on AC, but output DC, though there are the 'quick charge' packs that use entirely dc...
Any help appreciated.
Direct current would NOT ordinarily be used in which of the following?
A. Ships
B. Airplanes
C. Battery Charging
D. Arc Welding
E. Electric clocks
Now I may be totally crazy, but don't all on the list use or are capeable of using both AC & DC? I've pretty much narrowed this down to either battery charging or arc welding, but both of these have AC & DC versions... Battery chargers are typically run on AC, but output DC, though there are the 'quick charge' packs that use entirely dc...
Any help appreciated.