When a potential difference of 150 V is applied to the plates of an air-filled parallel-plate capacitor, the plates carry a surface charge density of 3.00 × 10−10 C/cm2 . What is the spacing between the plates?

A parallel-plate capacitor is formed from two 5.8 cm -diameter electrodes spaced 1.9 mm apart. The electric field strength inside the capacitor is 1.0 ×106N/C. What is the charge (in nC) on each electrode?

The electric field strength is 1.90×104 N/C inside a parallel-plate capacitor with a 0.600 mm spacing. An electron is released from rest at the negative plate. What is the electron's speed when it reaches the positive plate?

An electron is shot vertically upward through the tiny holes in the center of a parallel-plate capacitor. If the initial speed of the electron at the hole in the bottom plate of the capacitor is 4.00 x 106 m/s, what will be the speed of the electron just when it reaches the hole in the top plate? d = 2.00 cm, Q = 30.0 pC, A = area of either plate = 25.0 cm2, melectron = 9.109 x 10-31 kg, and qelectron = 1.602 x 10-19 C

A parallel plate capacitor consists of two rectangular, horizontally oriented plates, each with an area of 4.00 cm2, and separated by a distance of 0.300 mm. If the magnitude of the charge on each capacitor is 5.00 nC, what is the magnitude of the electric field  between both plates?

A spherical capacitor is composed of two concentric conducting spheres, one of radius a and the other of radius c (c > a). In addition, between the two conductors there is a spherical shell of dielectric material (relative permittivity/relative dielectric constant ) with inner radius b (c > b > a) and outer radius c. The charge on the inner conductor is +Q. The charge on the outer conductor is -Q. (a) Make a sketch of the situation, indicating the relevant dimensions. (b) Determine the magnitude of the electric field E at radius r for a < r < b. (c) Determine the magnitude of the electric field E at radius r for b < r < c. (d) What is the (induced) surface charge density on the inner surface of the dielectric. (e) Sketch the radial component of the electric field versus r . (f) Sketch the electrostatic potential versus r . (g)Calculate the potential difference between the conductor at r = a and that at r = c. (h) What is the capacitance of this capacitor?

NEW General HI Q Q ↓ Close 5. The figure shows a charged dielectric sphere centered at the origin and touches an infinite line of charges at x=4 m. The charged line extends along the z-axes as shown. Find the magnitude of the electric field (in N/C) at x=3 m. z (m) y (m) Q= 10 nC X=4 m X (m). Infinite line charge with A= 4 nC/m A) 3.22 B) 50.1 C) 72 D) 67.8 E) 4.2 Image 11:36 AM 6185 Sunny 4× DEU 13

A 5.30 cm by 2.40 cm parallel plate capacitor has the plates separated by a distance of 2.00 mm. When 4.00 × 10−11 C of charge is placed on this capacitor, what is the electric field between the plates?

The energy density in the region between the plates of a capacitor is 0.01 J/m^3. What is the magnitude of the electric fields between the plates? (E0=8.854 x 10^-12 C^2/Nm^2)