Abstract:

Students in the first years of undergraduate studies often need help understanding physical phenomena related to electromagnetism. One reason is that they are less visible than other phenomena in nature. Technological development has allowed incorporating advanced sensors in mobile devices, facilitating new methodologies in teaching and experimentation of Physics. This study explores using mobile applications to measure magnetic field components in real-time, using the magnetometer integrated into phones. The focus is on the Biot-Savart law and its application in single and multiple spins. An innovative experimental methodology is introduced, comparing it with a classical approach using a compass subjected to an external magnetic field to measure the earth's magnetic field. This comparison reveals remarkable consistency in the results, evidencing the accuracy and efficiency of mobile sensors in physical experiments. These devices, due to their ease of use and accessibility, represent a significant advantage over traditional methods, characterized by their rigidity and lower interactivity. The study confirms that cell phone sensors are practical tools for classical physics experimentation, offering the possibility to complement or replace conventional laboratory equipment. This not only makes physics more accessible but also more attractive to students.

Keywords:

Physics, mobile devices, Biot-Savart law, cell phone sensors, magnetic.