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The basic process of generating currents with magnetic fields is called induction; this process is also called magnetic induction to distinguish it from charging by induction, which uses the electrostatic Coulomb force.
Induction Experiments. (Faraday / Henry) - An induced current (and emf) is generated when: (a) we move a magnet around a coil, (b) move a second coil toward/away another coil, (c) change the current in the second coil by opening/closing a switch. -Magnetically induced emfs are always the result of the action of non-electrostatic forces.
In this part of the lab we will use an Induction Wand to verify Faraday’s Law of Induction and to measure the relationship between the magnitude of the induced electromotive force and the induced current with respect to the velocity of a coil traveling through a uniform magnetic eld.
I. Faraday’s law of induction. In this part of the experiment, a voltage sensor is used to measure the voltage (emf) induced in a coil when a permanent magnet is passing through the coil. The “EM8-I” program records and displays the induced voltage as a function of time.
goal for this experiment is to devise a qualitative rule that relates the magnitude of induced current to the properties of the magnet, the motion of the magnet, and the properties and the orientation of the coil.
PHY167 Spring 2021. – Electromagnetic induction. Michael Faraday ́s experiment: Changing current in the primary coil results in surges of current in the secondary coil. The effect is stronger if both coils are winded around an iron ring. The primary coil creates a magnetic field that goes throgh the secondary coil, too.
It contains an introduction to Faraday's law of electromagnetic induction, the aim of determining the law using a coil and magnet, the required apparatus, and theories around magnetic flux and the Maxwell-Faraday equation.
