PHYS208 PHYS208 3/11 Class

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Energy Stored in Capacitors and Electric Fields

Quote of the Day

To the chalkboard for presentation of:
Energy stored by a capacitor
Energy stored in charged capacitor
See pg. 637 of HRW

Concept Check

DEMONSTRATION: 3500 microfarad capacitor "charged" to 100 V, 18 J of energy stored. Sudden discharge; comparison to 1 kg mass dropped from 1.8 m height.

To the chalkboard for consideration of the energy stored in a parallel-plate capacitor:
Electrical energy density
Energy density associated with an electric field
Again, see pg. 637 of HRW

Review: Take-Home Quiz Solution


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Last updated March 13, 1998.
Copyright George Watson, Univ. of Delaware, 1997.