the questions: Along which vector does the compass needle point? What is the physical meaning of this vector? In the configurations illustrated by Fig. 1A and 1B, what direction would the compass needle point in each case if the magnitude of the loop's magnetic field was greater than magnitude of the Earth's magnetic field? What are the two ways to generate a magnetic field? What are the differences between these two methods? In Part 3, what is the maximum possible angle between the Earth's magnetic field and the net magnetic field? What would be the value of the current flowing through the coil at this angle? Note: this is not asking for the largest angle you measured, the question is about the maximum possible angle