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Understanding EMF Generation in Electromagnetic Loops

This article explores the principles of electromagnetic induction through a flexible wire loop positioned in a uniform magnetic field created by an electromagnet. As the current through the electromagnet is interrupted at time t=0, the magnetic field B declines to zero by time t1. A diagram illustrating the induced electromotive force (EMF) across the ends of the loop as a function of time is included. This concept is crucial for understanding electric motors and electromagnetic applications.

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Understanding EMF Generation in Electromagnetic Loops

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  1. Power Generation

  2. The diagram shows a flexible loop of wire between the poles of an electromagnet which provides a uniform field B in the region of the loop. At time t = 0, the current through the electromagnet is turned off, and the field B then falls to zero at time t1 as shown. Draw a diagram to represent the EMF across the ends of the loop as a function of time.

  3. http://www.animations.physics.unsw.edu.au/jw/electricmotors.html#mandghttp://www.animations.physics.unsw.edu.au/jw/electricmotors.html#mandg http://www.physics.org/explorelink.asp?id=3082&q=ac&currentpage=1&age=0&knowledge=0&item=5

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