Which of the following is true regarding the relationship of the electric potential energy and the charge stored in a capacitor, assuming the capacitance and the potential difference applied across the capacitor are constant? O The electrical potential energy increases with the charge stored parabolically. O The electrical potential energy decreases with the charge stored linearly. O The electrical potential energy decreases with the charge stored parabolically. O The electrical potential energy increases with the charge stored linearly.

Which of the following is true regarding the relationship of the electric potential energy and the charge stored in a capacitor, assuming the capacitance and the potential difference applied across the capacitor are constant? O The electrical potential energy increases with the charge stored parabolically. O The electrical potential energy decreases with the charge stored linearly. O The electrical potential energy decreases with the charge stored parabolically. O The electrical potential energy increases with the charge stored linearly.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter26: Electric Potential

Section: Chapter Questions

Problem 67PQ: A charged particle is moved in a uniform electric field between two points, A and B, as depicted in...

See similar textbooks

Similar questions

A parallel-plate capacitor has square plates of side s = 2.50 cm and plate separation d = 2.50 mm. The capacitor is charged by a battery to a charge Q = 4.00 C, after which the battery is disconnected. A porcelain dielectric ( = 6.5) is then inserted a distance y = 1.00 cm into the capacitor (Fig. P27.88). Hint: Consider the system as two capacitors connected in parallel. a. What is the effective capacitance of this capacitor? b. How much energy is stored in the capacitor? c. What are the magnitude and direction of the force exerted on the dielectric by the plates of the capacitor? Figure P27.88
An electric potential exists in a region of space such that V = 8x4 2y2 + 9z3 and V is in units of volts, when x, y, and z are in meters. a. Find an expression for the electric field as a function of position. b. What is the electric field at (2.0 m, 4.5 m, 2.0 m)?
A charged particle is moved in a uniform electric field between two points, A and B, as depicted in Figure P26.65. Does the change in the electric potential or the change in the electric potential energy of the particle depend on the sign of the charged particle? Consider the movement of the particle from A to B, and vice versa, and determine the signs of the electric potential and the electric potential energy in each possible scenario.
An electron moving parallel to the x axis has an initial speed of 3.70 106 m/s at the origin. Its speed is reduced to 1.40 105 m/s at the point x = 2.00 cm. (a) Calculate the electric potential difference between the origin and that point. (b) Which point is at the higher potential?
At a certain distance from a charged particle, the magnitude of the electric field is 500 V/m and the electric potential is 3.00 kV. (a) What is the distance to the particle? (b) What is the magnitude of the charge?
The distance between two small charged spheres with charges qA = 8.35 C and qB = +4.90 C is 48.0 cm. a. What is the electric potential energy due to the two spheres? b. What is the electric potential halfway between the two spheres along the line connecting them?
The separation between the 4.40-cm2 plates of an air-filled parallel-plate capacitor is 0.230 cm. a. What is the capacitance of this capacitor? If the capacitor is connected to a 9.00-V battery, find b. the charge stored by the capacitor and c. the magnitude of the electric field between its plates.
A spherical capacitor is formed from two concentric spherical conducting spheres separated by vacuum. Tire inner sphere has radius 12.5 cm and the outer sphere has radius 14.8 cm. A potential difference of 120 V is applied to the capacitor, (a) What is the capacitance of the capacitor? tb) What is the magnitude of the electrical field at r = 12.6 cm, just outside the inner sphere? (c) What is the magnitude of the electrical field at r = 14.7 cm, just inside the outer sphere? (d) For a parallel-plate capacitor the electrical field is uniform in the region between the plates, except near the edges of the plates. Is this also true for a spherical capacitor?
Review One of the plates of a parallel-plate capacitor is suspended from the beam of a balance as shown in Figure P27.39. The distance d between the capacitor plates is 5.00 mm, and the cross-sectional area of the plates is 625 cm2. Determine the potential difference between the capacitor plates if a mass of 4.00 g is placed on the other pan of the balance to obtain static equilibrium. FIGURE P27.39
A line of charge with uniform charge density = 2.00 103 C/m lies along the x axis from x = 0.250 m to x = 0.250 m. a. What is the magnitude of the electric potential at (0, 1.000 m)? b. How much work is necessary to move a particle with a charge of 5.00 nC from very far away to (0, 1.000 m)?
A filament running along the x axis from the origin to x = 80.0 cm carries electric charge with uniform density. At the point P with coordinates (x = 80.0 cm, y = 80.0 cm), this filament creates electric potential 100 V. Now we add another filament along the y axis, running from the origin to y = 80.0 cm, carrying the same amount of charge with the same uniform density. At the same point P, is the electric potential created by the pair of filaments (a) greater than 200 V, (b) 200 V, (c) 100 V, (d) between 0 and 200 V, or (e) 0?