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Introductory Physics Homework Help
Electric field with dielectric constant
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[QUOTE="quietriot1006, post: 1946183, member: 152847"] [h2]Homework Statement [/h2] Two 5.0mm*5.0mm electrodes with a 0.10mm thick sheet of Mylar between them are attached to a 9.0 V battery. Without disconnecting the battery, the Mylar is withdrawn. (Very small spacers keep the electrode separation unchanged.) Dielectric constant for Mylar is k=3.1. What is the charge before and after the Mylar is withdrawn? What is the electric field before and after the mylar is withdrawn? [h2]Homework Equations[/h2] C={k(epsilon_o)A}/d Q=CV C=kC_o [h2]The Attempt at a Solution[/h2] I get the charges correctly but i just can't get the electric field before and after. Charge before is 62 pC and after its 20 pC. Help please. [/QUOTE]
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Electric field with dielectric constant
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