Analyzing Potential Difference and Electric Field#

A parallel-plate capacitor has charge of magnitude 8.0 \(\rm\ \mu\textrm{C}\) on each plate and capacitance 3.0 \(\rm\ \mu\textrm{F}\) when there is air between the plates. The plates are separated by 2.0 \(\textrm{ mm}\). With the charge on the plates kept constant, a dielectric with \(\kappa = \) 4.0 is inserted between the plates, completely filling the volume between the plates.

Part 1#

What is the potential difference between the plates of the capacitor before the dielectric has been inserted?

Answer Section#

Please enter a numeric value.

Part 2#

What is the potential difference between the plates of the capacitor after the dielectric has been inserted?

Answer Section#

Please enter a numeric value.

Part 3#

What is the electrical field at the point midway between the plates before the dielectric is inserted?

Answer Section#

Please enter a numeric value.

Part 4#

What is the electrical field at the point midway between the plates after the dielectric is inserted?

Answer Section#

Please enter a numeric value.

pl-submission-panel#

pl-answer-panel#

Attribution#

Problem is from the OpenStax University Physics Volume 2 textbook, licensed under the CC-BY 4.0 license.
Image representing the Creative Commons 4.0 BY license.