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RUNNING HEAD: THE MAGNETIC FIELD IN A COIL EXPERIMENT NO. 4Module Title:Engineering Physics IIIn partial submission for the Bachelors of Engineering ( Electrical Engineering)ToUniversity of Technology JamaicaMr. MangarooDate: February 1, 2017ByDavid Godson | | 1605057Julius Reid | |Shemario Moriah | | 1600517EXPERIMENT NO. : 4 TITLE: The Magnetic Field in a Coil
THE MAGNETIC FIELD IIN A COILAIM: To examine how magnetic field is related to current through the coil.THEORY:When an electric current flows through a wire, a magnetic field is produced around the wire. Themagnitude and direction of the field depend on the shape of the wire and the direction and magnitudeof the current through the wire. If the wire is wrapped into a loop, the field near the center of theloop is perpendicular to the plane of the loop. When the wire is looped a number of times to form acoil, the magnetic field at the center increases.In this lab, you will examine how the magnetic field is related to both the number of turns in a coiland the current through the coil. A Magnetic Field Sensor will be used to detect the field at thecenter of the coil. A complication that must be considered is that the sensor will also detect theEarth’s field and any local fields due to electric currents or some metals near the sensor.To determine the current through the coil you will measure the voltage across a 1 ohm resistor inseries with the coil. Using Ohm’s law, I= V/R, we find, for example, that a voltage of 2 V across theresistor will correspond to a current of 2 A through the resistor.OBJECTIVES: Use a Magnetic Field Sensor to measure the field at the center of a coil.Determine the relationship between magnetic field and the number of turns in a coil.
THE MAGNETIC FIELD IIN A COILDetermine the relationship between magnetic field and the current in a coil.