Two technicians are discussing a fuel pump and an inertia switch (i. e. safety cutoff switch) wired in series. technician a states that the amperage measured at the pump should be the same as that measured at the switch. technician b states that high resistance in the in the inertia switch will reduce the amperage through the pump. which technician is correct?

Technician A is correct.

Explanation:

The amperage should be the same throughout. In an electric circuit, the current is ratio of the voltage and resistance:

and

where V = voltage and R =resistance

The potential difference between two points is given as the electromotive force, emf.

This is the force required to more electrons from one point to another.

In a similar sense, the current is the flow of charge from one point to another in a circuit.  Thus, the current should be the same throughout.

Hence Technician A is correct.