In the figure the four particles form a square of edge length a = 3.80 cm and have charges q1 = 10.3 nC, 92=-20.9 nC, 93= 20.9 nC, and 94 = -10.3 nC. What is the magnitude of the net electric field produced by the particles at the square's center?

Two conducting hollow spheres share a common center. The inner sphere has the radius a = 5.0 cm and charge +3.2x10-6 C. The outer sphere has the radius b = 32 cm and charge -4.0x10-6 C. What is the electric field (in N/C) at a point P, r = 20 cm from the center of the spheres?

A thin, copper washer of inner radius R = 54.0 mm and width d = 27.0 mm carries a unformly distributed total charge Q-9.00 nC. Determine the z-component of the electric field, Ez, due to the washer at a distance z = 12.0 cm along the washer's symmetry axis. Ez = -7.99 ×104 Incorrect N/C y Z

A long, thin straight wire with a linear charge density λwire = +3.17 nC/m runs down the center of a thin, hollow metal cylindrical shell of radius 1.55 cm. The cylindrical shell has a linear charge density λshell = +6.97 nC/m.(Figure 1) What is the electric field strength at a radius of 1.04 cmcm inside the cylindrical shell? What is the electric field strength at a radius of 2.29 cmcm outside the cylindrical shell?

The electric field just above the surface of the charged conducting drum of a 5 photocopying machine has a magnitude E of 2.3 × 10 N/C. What is the surface charge density on the drum?

Two long, charged, thin-walled, concentric cylindrical shells have radii of 3.0 and 7.3 cm. The charge per unit length is 5.7 x 10-6 C/m on the inner shell and -7.5 x 10-6 C/m on the outer shell. What are the (a) magnitude E and (b) direction (radially inward or outward) of the electric field at radial distance r = 4.3 cm? What are (c) E and (d) the direction at r = 12 cm? (a) Number (b) ✓ (d) inward outward (c) Number i + Units Units → +

+ a + A hollow sphere has a uniform volume charge density of 1.46 nC/m3. The inner radius is a = 11.7 cm and the outer radius is b = 46.8 cm. What is the magnitude of the electric field at 4.68 cm from the center of the sphere? What is the magnitude of the electric field at 145 cm from the center of the sphere?

Two long, charged, thin-walled, concentric cylindrical shells have radii of 2.5 and 4.0 cm. The charge per unit length is 6.9 × 106 C/m on the inner shell and -9.7 x 10-6 C/m on the outer shell. What are the (a) magnitude E and (b) direction (radially inward or outward) of the electric field at radial distance r = 3.5 cm? What are (c) E and (d) the direction at r = 6.5 cm? (a) Number i Units (b) (c) Number Units (d) >

In the figure a nonconducting rod of length L = 8.39 cm has charge -q = -4.42 fC uniformly distributed along its length. (a) What is the linear charge density of the rod? What are the (b) magnitude and (c) direction (positive angle relative to the positive direction of the x axis) of the electric field produced at point P, at distance a = 12.7 cm from the rod? What is the electric field magnitude produced at distance a = 80 m by (d) the rod and (e) a particle of charge -q = -4.42 fC that replaces the rod?