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Question & Answer
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A capacitor with air between its plates allows maximum charge flow without any obstruction.
Inserting a glass dielectric between the plates of a capacitor increases capacitance and reduces the electric field strength.
A capacitor with a metal plate inserted between its plates shows no change in capacitance or electric field.
Removing a dielectric from a charged capacitor results in an instant increase in charge stored.
Understanding the Answer
Let's break down why this is correct
Adding a glass piece between the plates lets tiny dipole molecules inside the glass line up with the electric field. Other options are incorrect because Air does not create dipoles that cancel the field; it behaves like a vacuum; Inserting a metal plate would short the plates together, making the capacitor useless.
Key Concepts
Electric Field Effects on Charge
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Deep Dive: Electric Field Effects on Charge
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Definition
Dielectric materials impact the flow of charge in electric fields. When a dielectric is inserted, charge flows onto plates, altering the capacitor's behavior. Understanding this process helps in designing capacitors with large capacitance while considering factors like breakdown electric field.
Topic Definition
Dielectric materials impact the flow of charge in electric fields. When a dielectric is inserted, charge flows onto plates, altering the capacitor's behavior. Understanding this process helps in designing capacitors with large capacitance while considering factors like breakdown electric field.
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