You are expected to answer the following questions based on your current understanding of circuits (keep in mind you aren't graded based on correctness). The illustration below depicts four possible models to explain the flow of current when a light bulb is connected to a battery using two wires.

II...- -a-l-i' Model A Model B There will he no The electric current will electric current left to travel in a direction flow in the bottom wire toward the bulb in both since the current is wires. used up lighting the bulb. Model C Model D The direction of the The direction of the current will he in the current will he as direction shown, but shown, and the there will be less magnitude will he the current in the return some in both wires. wire since some of the current is used up lighting the bulb