Where does the energy go

Where does the energy go - density (energy per unit volume)...

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Where does the energy go? One of the main differences between resistors, capacitors, and inductors in AC circuits is in what happens with the electrical energy. With resistors, power is simply dissipated as heat. In a capacitor, no energy is lost because the capacitor alternately stores charge and then gives it back again. In this case, energy is stored in the electric field between the capacitor plates. The amount of energy stored in a capacitor is given by: In other words, there is energy associated with an electric field. In general, the energy
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Unformatted text preview: density (energy per unit volume) in an electric field with no dielectric is: With a dielectric, the energy density is multiplied by the dielectric constant. There is also no energy lost in an inductor, because energy is alternately stored in the magnetic field and then given back to the circuit. The energy stored in an inductor is: Again, there is energy associated with the magnetic field. The energy density in a magnetic field is:...
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This note was uploaded on 11/22/2011 for the course PHY PHY2053 taught by Professor Davidjudd during the Fall '10 term at Broward College.

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