Question

DC current flows in a metal piece of non
uniform cross-section. Which of these
quantities remains constant along the
conductor: current, current density or
drift speed?

Answer 1

Answer:

Density will be the answer becoz in DC current current moves away in curved way

Answer 2

Answer:

Current is the quantity that always remains as a constant along the conductor.

Explanation:

• The conductor being talked about has non-uniform cross section of nonmetal and direct current is flowing through it then it is the current that remains steady.
• The other options that's a current density and drift speed are not constant because they are in proportion with the area of the conductor and since it is non uniform conductor area changes continuously hence these two quantities also do not remain constant.