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Electromagnetics

Electromagnetics. Electrostatic CAPACITANCE. Capacitance. Capacitance is defined as: For a parallel plate capacitor: For a cylindrical coaxial plates capacitor: For a monophase line:. Capacitance. For a parallel plate capacitor:. where:.

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Electromagnetics

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  1. Electromagnetics Electrostatic CAPACITANCE

  2. Capacitance • Capacitance is defined as: • For a parallel plate capacitor: • For a cylindrical coaxial plates capacitor: • For a monophase line:

  3. Capacitance • For a parallel plate capacitor: where:

  4. Let S = 120 cm2, d = 4 mm, and r= 12 for a parallel-plate capacitor. • Calculate the capacitance: • After connecting a 40 V battery across the capacitor, • Calculate E:

  5. 2. Calculate D: 3. Calculate Q:

  6. 4. Calculate the Total Stored Electrostatic Energy: The source is now disconected and the dielectric carefuly removed. 5. Calculate E, D, Q, and the Total Stored Electrostatic Energy again:

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