4.8. The electric potential energy stored in any capacitor, dielectric filled or not, is given by:U = }C(AV). When a dielectric material is inserted into the isolated, charged capacitor,does this stored energy increase or decrease? Use your factors from the previous questions4.3 and 4.6 to determine by what factor this energy changes.4.9. Because this energy is an electric potential energy, it must be associated with a force. For anypotential energy: F =- VU. In words, there is a force in the direction of decreasingpotential energy. What does this mean for the dielectric as it begins to enter the capacitor?

As we know capacitance depends on dielectric material between the plate . Cmed. = K Cair where…

Answered: Because this energy is an electric…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

Consider two points in an electric field. The potential at P1 is V1= -30V and the potential at P2= 150. How much work does an external force do when moving a load q= -4.7 μC, from P1 to P2?
What is the electric potential 4.6×10−11 m from a proton (charge +e)? Let V=0 at r=∞.Express your answer using two significant figures. What is the potential energy of an electron at this point?
The rectangle in the figure is 3 sidescapped by 5.0cm and 15cm, etq1 = −5μCetq2 = + 2.0μC. IfV = 0 at infinity, what is the electric potential (a) at corner A? (b) at corner B? (c) How much work does it take to move a third load q3 = +3.0 μC from point B to point A on the diagnonal of the rectangle? (d) Does this work increase or decrease the potential electrical energy of the three-load system? Is it greater than, less than or equivalent to the work required to move q3 on trajectories that are inside the rectangle but not on the diagnostic? (f) outside the rectangle? Please show formulas, thank you
What is the difference between potential and potentialenergy? Do they have different dimensions? Different units?
At point P, what is the electric potential? What is the potential energy of an electron? At point P, what is the speed of an electron when it is far away from the beads?
In a region where there is an electric field, the electric forces do +2.10 × 10−19 J of work on an electron as it moves from point X to point Y. What is the potential difference, VY − VX, between point Y and point X?
a bar with a length of L lies on the x-axis, with its left end at the origin. the charge density of the bar is given by p(x) = ax^2. find the electric potential at a point on the x-axis to the right of the bar. show the work!
An electron is moved from point A, where the electric potential is VA = −126 V, to point B, where the electric potential is VB = −339 V. What is the change in the electric potential energy?
A hollow metal sphere has a radius of 5.00 cm. If an excess charge of 50.0 uc resides on the sphere, what is the electric potential 10.0 cm from the surface of the sphere?
A stationary proton is moved form point A, where the potential is 450.0 V, to point B, where the potential is 125.0 V. (a) How much work is done be the electric force? (b) What is its speed to point B ? (c) What is the electric potential energy of point A? (D) What is the electric potential energy at Point B?
The electric potential in a region is given by V = 2xy - 3zx + 5y2, with V in volts and the coordinates in meters. Find (a) the potential and (b) the components of the electric field at the point x = 1 m, y = 1 m, z = 1 m.
. In the rectangle of Figure below, the sides have lengths 5.0 cm and 15 cm, q1 , and q2 μC. With V = 0 at infinity, what is the electric potential at (a) corner A and (b) corner B? (c) How much work is required to move a charge q3 μC from B to A along a diagonal of the rectangle? (d) Does this work increase or decrease the electric potential energy of the three-charge system? Is more, less, or the same work required if q3 is moved along a path that is (e) inside the rectangle but not on a diagonal and (f) outside the rectangle?

SEE MORE QUESTIONS

Recommended textbooks for you

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

College Physics

Physics

ISBN:

9781305952300

Author:

Raymond A. Serway, Chris Vuille

Publisher:

Cengage Learning

University Physics (14th Edition)

Physics

ISBN:

9780133969290

Author:

Hugh D. Young, Roger A. Freedman

Publisher:

PEARSON

Introduction To Quantum Mechanics

Physics

ISBN:

9781107189638

Author:

Griffiths, David J., Schroeter, Darrell F.

Publisher:

Cambridge University Press

Physics for Scientists and Engineers

Physics

ISBN:

9781337553278

Author:

Raymond A. Serway, John W. Jewett

Publisher:

Cengage Learning

Lecture- Tutorials for Introductory Astronomy

Physics

ISBN:

9780321820464

Author:

Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina Brissenden

Publisher:

Addison-Wesley

College Physics: A Strategic Approach (4th Editio…

Physics

ISBN:

9780134609034

Author:

Randall D. Knight (Professor Emeritus), Brian Jones, Stuart Field

Publisher:

PEARSON

SEE MORE TEXTBOOKS

Because this energy is an electric potential energy, it must be associated with a force. For any potential energy: F =- VU . In words, there is a force in the direction of decreasing potential energy. What does this mean for the dielectric as it begins to enter the capacitor?