Procedure Go to the web site: https://phet.colorado.edu/en/simulation/legacy/faraday Select the tab electromagnet. Notice the compass, the batteries, the loops of coils and the field meter. Equivalence: 1 T = 10* Gauss e Verify the polarity of the electromagnet with the help of the compass. e Verify that the magnetic field is almost constant along the axis of the electromagnet is approximately constant. Use the filed meter to take 5 different measurements as a function of the horizontal distance x along the axis. Start at the center of the electromagnet axis and move the meter to the right. Set the voltage battery to 10V B = Gauss = Tesla B = Gauss = Tesla B3 = Gauss = Tesla By = Gauss = Tesla Bs = Gauss = Tesla Verify that the strength of the magnetic field increases with the voltage of the battery Align the meter at the center of the axis of the electromagnet. Set the voltage to zero and record the magnetic field for increments of 1 volt . Complete the table. \fChange the polarity of the battery. Observe what happens with the magnetic field direction? Make a scatter plot using excel of Magnetic field intensity (T) versus voltage (V) Calculations: Assuming the magnetic field inside the solenoid is given by B = Mo IT Solve for the current I I =. BL HO N With: N = 4 Mo = 4x x 10 Tm/A And L=0.3 cm, B = 300 Gauss (change to Tesla) I = AmpIf the diameter of the loop is 2.5 cm calculate the magnetic flux through the solenoid Q= Write conclusions Hint: e Start with describing what you did e Describe what you observe e Do you observe a changing flux