Answer the following question given this paragraph: 

Meters, such as those in analog fuel gauges on a car, are another common application of magnetic torque on a current-carrying loop. Figure 22.37 shows that a meter is very similar in construction to a motor. The meter in the figure has its magnets shaped to limit the effect of θ by making B perpendicular to the loop over a large angular range. Thus the torque is proportional to I and not.


Q: Meters, such as those in analog fuel gauges on a car, are a common application of magnetic torque on a current-carrying what?

 Choices:

- circuit

- dial

- arc

- loop

A:
loop
