Faraday's Law of Induction

Faraday's Law of Induction - Ryan Henry Tarek Abbassi...

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Ryan Henry Tarek Abbassi Alvaro Sarmiento Faraday’s Law of Induction 8/5/10
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Introduction Part I – Induced EMF According to Faraday’s Law of Induction, a changing magnetic flux through a coil induces an emf given by: E = -N(d / dt), where = B * dA = BA for a magnetic ɸ ɸ ʃ field (B) which is a constant over the area (A) and perpendicular to the area. N is the number of turns of wire in the coil. For this lab, the area of the coil is constant and as the coil passes into or out of the magnetic field,, there is an average emf given by E = -NA(ΔB / Δt). Part II – Energy If the center of mass of the pendulum starts from rest at an initial height h i , its potential energy is U = mgh i . s the pendulum swings and passes through the magnet, some energy is lost to mechanical frictional heat and some energy is converted to electrical energy and then to thermal energy in the resistor. Thus the center of mass of the pendulum does not rise to the same height but rather to a lower final height, h
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This note was uploaded on 09/12/2011 for the course PHYS 2326 taught by Professor Staff during the Summer '08 term at HCCS.

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Faraday's Law of Induction - Ryan Henry Tarek Abbassi...

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