When a dielectric material is inserted into an air-spaced capacitor that has been charged, a voltmeter connected across the plates of the capacitor will show an increase in voltage.

Question

Quizplus · Accepted Answer

Inserting a dielectric material into a charged air-spaced capacitor actually decreases the electric field between the plates, which in turn decreases the voltage across the capacitor as observed by a voltmeter.

When a Dielectric Material Is Inserted into an Air-Spaced Capacitor