Alternating current and direct current
1 mark · EasyState the meaning of direct current (d.c.).
Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.
Show answer
Also accept: Current that flows in one direction only; Current that does not change direction; Current stays the same direction
Common mistakes: Definitions that confuse d.c. and a.c.
Show mark scheme and worked solution
Marking points
B1 · 1 mark · Correct definition of direct current (e.g., flows or stays in one direction only).
Worked solution
Direct current is an electric current that flows in one direction only.