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The space between the plates of a flat capacitor is filled with a dielectric (porcelain, ɛ = 5), the volume V of which is 100 cm3. Surface charge density o = 8.85 nC / m2. Calculate the work A to be done to remove the dielectric plate from the capacitor. Friction is neglected. Consider two cases: a) the capacitor is disconnected from the voltage source; b) the capacitor is connected to a power source with a voltage of U = 20 V.

The space between the plates of a flat capacitor is filled with a dielectric (porcelain, ɛ = 5), the volume V of which is 100 cm3. Surface charge density o = 8.85 nC / m2. Calculate the work A to be done to remove the dielectric plate from the capacitor. Friction is neglected. Consider two cases: a) the capacitor is disconnected from the voltage source; b) the capacitor is connected to a power source with a voltage of U = 20 V.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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calculate the work A please

The space between the plates of a flat capacitor is filled with a dielectric (porcelain, ɛ = 5), the volume V of which is 100 cm3. Surface charge density o = 8.85 nC / m2. Calculate the work A to be done to remove the dielectric plate from the capacitor. Friction is neglected. Consider two cases: a) the capacitor is disconnected from the voltage source; b) the capacitor is connected to a power source with a voltage of U = 20 V.
Transcribed Image Text:The space between the plates of a flat capacitor is filled with a dielectric (porcelain, ɛ = 5), the volume V of which is 100 cm3. Surface charge density o = 8.85 nC / m2. Calculate the work A to be done to remove the dielectric plate from the capacitor. Friction is neglected. Consider two cases: a) the capacitor is disconnected from the voltage source; b) the capacitor is connected to a power source with a voltage of U = 20 V.
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