2. An air-filled parallel-plate capacitor has acapacitance of 1 pF. The plate separation isthen halved and a wax dielectric isinserted, completely filling the spacebetween the plates. As a result, thecapacitance increased to 4 pF. What is thedielectric constant of the wax?O 0.25.O 0.5.O 2.0.O 4.0.O 8.0.

GivenCair=1 pF=10-12 FCwax=4 pF=4×10-12 F

Answered: then halved and a wax dielectric is…

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then halved and a wax dielectric is nserted completely filling the space

Glencoe Physics: Principles and Problems, Student Edition

1st Edition

ISBN:9780078807213

Author:Paul W. Zitzewitz

Publisher:Paul W. Zitzewitz

Chapter25: Electromagnetic Induction

Section: Chapter Questions

Problem 79A

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An electrostatic force is a force caused by stationary electric charges /fields. The electrostatic force is caused by the transfer of electrons in conducting materials. Coulomb’s law determines the amount of force between two stationary, charged particles. The electric force is the force which acts between two stationary charges. It is also called Coulomb force.

Question

An air-filled parallel-plate capacitor has a
capacitance of 1 pF. The plate separation is
then halved and a wax dielectric is
inserted, completely filling the space
between the plates. As a result, the
capacitance increased to 4 pF. What is the
dielectric constant of the wax?
O 0.25.
O 0.5.
O 2.0.
O 4.0.
O 8.0.

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