Experiment 4 Faraday\'s Law and Induced EMF Physics Laboratory 202/212 1. Sketch

Question

Experiment 4 Faraday's Law and Induced EMF Physics Laboratory 202/212 1. Sketch the graph from Logger Pro 3 in the space below. 2. Use Faraday's Law to explain the shape of the graph. Remember the shape of the magnetic field lines of a bar magnet from your reading and lectures. The equation below indicates that the total change in magnetic flux is equal to the negative of the area under the voltage versus time graph. (4.3) Using Logger Pro 3, we will analyze the previous graph to determine the incoming and outgoing flux, as the bar magnet fell through the induction coil. 01n Logger Pro 3, click the previous graph to make it active. Highlight the first peak as in the diagram below.

Explanation / Answer

THE TRACE OF THE HEIGHT INCREASES THEN THE FLUX WILL BE DOUBLED

TRACE OF HEIGHT IS SMALL THEN FLUX IS WEAKER

ACCORDING TO FARADAYS LAW FLUX LINKAGE IS CONSTANTLY

SO AN EMF IS INDUCED ACCORDING TO THE FARADAYS LAW

FLUX CHANGE IS IN OPPOSITE DIRECTION WHEN THE MAGNET LEAVES THE COIL COMPARED WITH WHEN IT IS ENTERING

SPEED INCREASES MAGNETIC FIELD STRENTH INCREASE

AREA OF THE CURVE REPRESENTS THE TOTAL FLUX CHANGE.

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