The electric field at 2 cm from the center of long copper rod of radius 1 cm has a magnitude 3 N/C and directed outward from the axis of the rod. (a) How much charge per unit length exists on the copper rod? (b) Whatwould be the electric flux through a cube of side 5 cm situated such that the rod passes through opposite sides of the cube perpendicularly?

An electric field of strength 450 N/C is pointing in the positive x-direction. What would be the total flux through a cube box of side 1m if it is sitting on the x-y plan and one side is making an angle of 32 degrees with the y-axis and contains a charge of value 7.5 nC?

The electric field everywhere on the surface of a thin, spherical shell of radius 0.780 m is of magnitude 872 N/C and points radially toward the center of the sphere. (a) What is the net charge within the sphere's surface?

Figure (a) shows a nonconducting rod with a uniformly distributed charge +Q. The rod forms a 10/23 of circle with radius R and produces an electric field of magnitude Earc at its center of curvature P. If the arc is collapsed to a point at distance R from P (see Figure (b)), by what factor is the magnitude of the electric field at P multiplied? +Q +Q R (a) (b) Number i ! Units This answer has no units

A square conducting plate 54.0 cm on a side and with no net charge is placed in a region, where there is a uniform electric field of 75.0 kN/C directed to the right and perpendicular to the plate. (a)Find the charge density (in nC/m2) on the surface of the right face of the plate. b)Find the charge density (in nC/m2) on the surface of the left face of the plate. (c)Find the magnitude (in nC) of the charge on either face of the plate.

A penny is in an external electric field of magnitude 2.5 kN/C directed perpendicular to its faces. (a) Find the charge density on each face of the penny, assuming the faces are planes. nc/m2 (b) If the radius of the penny is 1 cm, find the total charge on one face. pC

A long silver rod has a radius of 3 cm and a charge density of -13μC/cm on its surface. a) The electric field may be expressed as E=Err^where r^ is perpendicular to and points away from the symmetry axis. What is ErEr, in newtons per coulomb, at a point 5.5 cm from the symmetry axis of the rod?  b) The electric field may be expressed as E=Err^where r^ is perpendicular to and points away from the symmetry axis. What is ErEr, in newtons per coulomb, at a point 0.75 cm from the symmetry axis of the rod?

(a) Determine the electric field strength at a point 1.00 cm to the left of the middle charge shown in the figure below. (Enter the magnitude of the electric field only.) (b) If a charge of −6.49 µC is placed at this point, what are the magnitude and direction of the force on it?