Department of Pre-University Education, Karnataka course PUC Karnataka Science Class 12
Share
Notifications

View all notifications

So, as the Energy Decreases, the Force Due to the Electric Field of the Capacitor Increases When the Dielectric is Dragged into the Capacitor. - Physics

Login
Create free account


      Forgot password?
ConceptCapacitance of a Parallel Plate Capacitor with and Without Dielectric Medium Between the Plates

Question

When a dielectric slab is gradually inserted between the plates of an isolated parallel-plate capacitor, the energy of the system decreases. What can you conclude about the force on the slab exerted by the electric field?

Solution

As the energy of the system decreases, the change in the energy is negative. Force is defined as a negative rate of change of energy with respect to distance.

`F = -(∂U)/(∂x)`

So, as the energy decreases, the force due to the electric field of the capacitor increases when the dielectric is dragged into the capacitor.

  Is there an error in this question or solution?

APPEARS IN

 HC Verma Solution for Concepts of Physics - Vol. 2 (2018 to Current)
Chapter 9: Capacitors
Short Answers | Q: 7 | Page no. 163
Solution So, as the Energy Decreases, the Force Due to the Electric Field of the Capacitor Increases When the Dielectric is Dragged into the Capacitor. Concept: Capacitance of a Parallel Plate Capacitor with and Without Dielectric Medium Between the Plates.
S
View in app×