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    Calculating Electric Energy

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    Question: A capacitor consists of a circular cross-section metallic rod of 1mm radius and a coaxial hollow metallic cylinder of 3mm radius of the inner surface. The length of the capacitor is 20cm. The space between the rod and the cylinder is filled by a dielectric 2.5 relative permittivity and 10^7 V/m breakdown strength.

    What is the upper limit on electric energy that can be stored in the capacitor?

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    The upper limit of the enrgy stored in the capacitor
    Umax = (1/2)*K*epsilon*Emax^2*V
    K = relative permittivity = 2.5
    epsilon = absolute ...

    Solution Summary

    This solution consists of a step-by-step explanation of how to answer this electromagnetics question. All formulas and variables required are provided.