Dielectrics
Finding the change in electric field, potential difference, capacitance, and electrostatic potential energy of a parallel plate capacitor when the distance between the plates is increased or when a dielectric is inserted.
8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen-Ben Liao
Course Material Related to This Topic:
Introduction of polar and nonpolar dielectrics; Gauss's Law for dielectrics; effect of introducing dielectrics within a capacitor at constant charge or constant voltage.
Qualitative description of the effect of a dielectric on capacitance, with illustration of microscopic picture of dipole alignment.
- Read chapter 5, pages 16–8 of online textbook
Leyden Jars and Capacitor Energy
Leyden jars and Wimshurst machine; dielectrics; energy stored by E-field in capacitor.
8.022 Electricity and Magnetism, Fall 2004
Prof. Gabriella Sciolla
Course Material Related to This Topic:
Capacitor Banks
Capacitance in series and in parallel; applications and problems.
8.022 Electricity and Magnetism, Fall 2004
Prof. Gabriella Sciolla
Course Material Related to This Topic:
Calculating with Dielectrics
Introduction of polar and nonpolar dielectrics; Gauss's Law for dielectrics; effect of introducing dielectrics within a capacitor at constant charge or constant voltage.
8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen-Ben Liao
Course Material Related to This Topic:
- Read chapter 5, pages 21–6 of online textbook
Analysis of a Parallel Plate Capacitor with Dielectric
Find the electric field, potential difference, and capacitance of a parallel plate capacitor, and recalculate the potential difference in the presence of a dielectric. Solution is included after problem.
8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen-Ben Liao
Course Material Related to This Topic:
- Complete practice problems on pages 30–3
Conceptual Questions on Capacitance and Dielectrics
Conceptual questions energy storage and dielectrics in capacitors.
8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen-Ben Liao
Course Material Related to This Topic:
- Complete practice problems on pages 42–3
Capacitor with Three Dielectrics
Find the capacitance of a capacitor when it is filled with three dielectrics in two different configurations.
8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen-Ben Liao
Course Material Related to This Topic:
- Complete practice problems on pages 43–4
Cylindrical Capacitor with Dielectric
Find the electric field and induced charges in a cylindrical capacitor with dielectric, using Gauss's Law.
8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen-Ben Liao
Course Material Related to This Topic:
- Complete practice problems on pages 44–5
Effect of a Dielectric
Identify how the charge, energy and forces in a capacitor change as a dielectric is introduced.
8.02 Physics II: Electricity and Magnetism, Spring 2007
Prof. John Belcher, Dr. Peter Dourmashkin, Prof. Robert Redwine, Prof. Bruce Knuteson, Prof. Gunther Roland, Prof. Bolek Wyslouch, Dr. Brian Wecht, Prof. Eric Katsavounidis, Prof. Robert Simcoe, Prof. Joseph Formaggio, Andy Neely, Matthew Strafuss, Prof. Eric Hudson, Dr. Sen-Ben Liao
Course Material Related to This Topic:
- Complete practice problems on pages 6–8
Parallel-Plate Capacitor
5-part problem; finding V, stored energy, work to move plates; inserting dielectric.
8.02X Physics II: Electricity and Magnetism with an Experimental Focus, Spring 2005
Dr. Peter Dourmashkin, Prof. Gunther Roland
Course Material Related to This Topic:
- Complete practice problem 1
- Check solution to
practice problem 1
Energy in a Capacitor
Determining energy stored in parallel-plate capacitor with and without dielectric.
8.02X Physics II: Electricity and Magnetism with an Experimental Focus, Spring 2005
Dr. Peter Dourmashkin, Prof. Gunther Roland
Course Material Related to This Topic:
Energy and Dielectrics
Stored energy and potential difference after inserting a dielectric.
8.02X Physics II: Electricity and Magnetism with an Experimental Focus, Spring 2005
Dr. Peter Dourmashkin, Prof. Gunther Roland
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