Lesson: Current

Write true if it is correct, write false if not. And explain why?

1. Electric current doubles if the amount of charge flowing in the same cross-sectional area is doubled.

2. The current density doubles if the cross-sectional area of a wire is doubled, while a constant amount of current flows through it.

3. The amount of charge dQ triples if three charge carriers are considered while having an equal value for each charge q.

4. Drift speed an electron is halved if the amount of current is doubled while making the concentration of particles and the cross-sectional area constant.

5. Drift speed of an electron is doubled if the cross-sectional area is also doubled, while making the amount of current and the concentration of particles constant.