A ring-shaped conductor with radius a = 2.30 cm has a total positive charge Q = 0.121 nC uniformly distributed around it. (electric field at point p which is in positive x-axis x= 35.0 cm) a) figure out the electric field very far away. Is it consistent with the coulombs law? b) figure out the electric field at the center of ring

a) A very long (almost infinitely long) cylindrical wire of radius R carries a uniform charge density Po. Find the line charge density. Find the electric field inside and outside the wire. b) If a long cylindrical cavity of radius b is created at a distance a in the wire maintaining same charge density as part (a) (see Fig. 2). Find the line charge density. Find the electric field inside the cylindrical cavity. 01 Fig. 2

A uniformly charged ring of charge +Q and radius R lies in the x-y plane, and at some point along the axis of the ring a distance z from the center you measu re the magnitude of the electric field E. Replacing the ring with a solid disk having the same Q and R, you would measure D a. Edisk Ering

A ring of radius R has total charge Q.a) At what distance along the central axis perpendicular to the plane of the ring is the electric field strength a maximum?b) What is the electric field strength at this point?

Point P sets above an infinite line of charge 2 m in the positive z direction. The line of charge itself has a charge density ? of -5.0 x 10⁶ C/m. What is the magnitude of the electric field at point P?

NCS-1 A non-conducting sphere of radius R=0.300m has a total charge q-100μC that is evenly distributed throughout its volume. a) Find the charge within a radius of r=0.100m. Hint: first find the volume charge density p. b) Find the electric field strength at r=0.100m. c) Find the charge within a radius of r-0.200m. d) Find the electric field strength at r-0.200m. e) Find the charge within a radius of 1-0.300m. f) Find the electric field strength at r-0.300m. g) How does E change with increasing radius? R

Thin Sheet of Charge Find the magnitude and direction of the electric field near the center of a thin rectangular conducting sheet that is 49 cm by 71 cm and has an excess charge, Q = -53 μC. E = N/C and it points ✓---Select--- e plate. toward away from Submit 2. CHARGED SPHERE A spherical conductor with radius, r = 0.13 m, has a surface charge density of 42.6 nC/m². (a) Find the excess charge on the sphere. Q= nC (b) What is the strength and direction of the electric field on its surface? E = N/C and it points ---Select--- the sphere

Assume you have a line of positive charge with a linear charge density of 10.0 µC/m. Assume that this line of charge is infinitely long and lies on the z-axis (which is perpendicular to both the x- and y-axes). a) Find the strength and direction of the electric field associated with this line of charge at (0.5 m, 0 m, 0 m) The strength of the field at the stated point is N/C and the direction of the field at the stated point is O-x O+x O-y O+y O-z O+z b) Find the strength and direction of the electric field associated with this line of charge at (0 m, 0.5 m, 5 m) The strength of the field at the stated point is N/C and the direction of the field at the stated point is O-x O+x O-y O+y O-z O+z c) Find the strength and direction of the electric field associated with this line of charge at (2.0 m, 0 m, Om) The strength of the field at the stated point is N/C and the direction of the field at the stated point is O-x O+x O-y O+y O-z O+z

There is a +5C charge at the center of a hollow sphere made of a perfect conductor. The hollow sphere has a net charge of +2C, an inner radius of 0.5 m and an outer radius of 0.75 m. Calculate the electric field as a function of distance from the +5C charge and the charge on each surface of the hollow sphere.

The electric field at a distance of 0.154 m from the surface of an insulating solid sphere of radius 0.385 m is 1970 N/C. Assuming that the charge on the sphere is uniformly distributed, a) what is the charge density within it? b) Calculate the electric field inside the sphere at a distance of 0.150 m from the center.