Emily worries that there is a strong magnetic field near the

Emily worries that there is a strong magnetic field near the high performance computing center. Sketch a way to detect the magnitude and direction of the magnetic field using what we discussed in class this semester.

Solution

Well here I shall describe a method to detect the presence of magnetic field as well as find the magnitude and direction of the field. Hope this is the same as done in your class.

magnetic field can be measured using an instrument called gaussmeter.

A gaussmeter is also called as a magnetometer. A magnetometer is a scientific instrument used to measure the strength and/or direction of the magnetic field in the vicinity of the instrument.
A direct current flowing in an inductor creates a strong magnetic field around a hydrogen-rich fluid, causing the protons to align themselves with that field. The current is then interrupted, and as protons are realigned with Earth\'s magnetic field they precess at a specific frequency. This produces a weak alternating magnetic field that is picked up by a inductor. The relationship between the frequency of the induced current and the strength of Earth\'s magnetic field is called the proton gyromagnetic ratio, and is equal to 0.042576 hertz per nanotesla (Hz/nT

there is another way a gaussmeter works and that is using hall effect.

The Hall effect is due to the nature of the current in a conductor. Current consists of the movement of many small charge carriers, typically electrons, holes ions or all three. When a magnetic field is present, these charges experience a force, called theLorentz force.