In the circuit shown above all of the wire is made of Nichro

In the circuit shown above, all of the wire is made of Nichrome, but one segment has a much smaller cross sectional area. Which of the following statements are true? The magnitude of the electric field is the same at every point in the circuit. The electron current is the same at every point in the circuit. The magnitude of the electric field at location D is larger than the magnitude of the electric field at location G. There is no surface charge at all on the wire near location G. Fewer electrons per second pass through location E than location C. 1, 3, 5 2, 3 2, 3, 4 1, 2

Solution

2,3 are correct. The electric current is the same at any point in the circuit. But not the current density.

The current density is directly proportional to the electric field. Smaller crosssectional wire has greater current density.