The electric field on the axis of a uniformly charged ring has magnitude 400 kN/C at a point 6 cm from the ring center. The magnitude 15 cm from the center is 125 kN/C; in both cases the field points away from the ring. a. Find the rings radius b. find the rings charge

A solid rod 2.54 cm in diameter and 1.50 m long carries a uniform volume charge density. The electric field inside the rod, halfway between its axis and its surface but not near either end, has magnitude 681 kN/C and points radially outward. a. Find the rod’s total charge. b. Find the electric field at the surface of the rod.

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When a charge is placed on a metal sphere, it ends up, in equilibrium, distributed uniformly over the outer surface. Use this information to determine the electric field of 5μC charge put on a 6.5-cm radius aluminum spherical ball at the following two points in space: Hint a. a point 1.5 cm from the center of the ball (an inside point): the magnitude of the electric field is N/C. b. a point 13 cm from the center of the ball (an outside point): the magnitude of the electric field is N/C. Question Help: Message instructor Submit Question

y A Point Charge Q₁ = -0.1 μC is located at the origin. A. Find the Electric Field (magnitude and direction) at point P located at x = 8 m and y = 6 m. B. Find the value of Point Charge Q₂ located at x = 8 m and y = 0 m and Point Charge Q3 located at x = 0 m and y = 6 m that will cause the Electric Field to be zero at point P. C. Given Point Charges Q₁, Q2 and Q3 as determined above, Find the Electrostatic Potential at point P.

A particle of charge 2.0 x 10-8 C experiences an upward force of magnitude 1.5 x 10-6 N when it is placed at a particular point in space. Hint a. What is the electric field at that point? The electric field at that point is N/C. b. If a charge q = The force is in Select an answer direction with magnitude (Use "E notation" to give your answer in scientific notation, e.g. "3.14E-12" for 3.14 x 10-12 .) 3.0 x 107 -8 C is placed there, what is the force on it? Question Help: Message instructor Submit Question Course Chat N. MacBo

A conducting sphere is placed within a conducting spherical shell. The conductors are in electrostatic equilibrium. The inner sphere has a radius of 1.50 cm, the inner radius of the spherical shell is 2.25 cm, and the outer radius of the shell is 2.75 cm. The inner sphere has a charge of 228 nC and the spherical shell has zero net charge. What is the electric field at a point 3.80 cm from the center? Enter a positive answer if the electric field is directed away from the center and a negative answer if the electric field is directed toward the center.

A rod of length l = 5 m, is uniformly charged and has a total charge of 46 nC. What is the magnitude of the electric field (in N/C) at the point 'P' which lies along the axis of the rod and is 4.8 m from the center of the rod? E P

The electric field everywhere on the surface of a thin, spherical shell of radius 0.735 m is of magnitude 927 N/C and points radially toward the center of the sphere. What is the net charge within the sphere's surface? nC

The figure shows a solid non-conducting sphere of radius a = 4.4 cm. It is surrounded by a charged conducting spherical shell of inner radius b = 15.3 cm and outer radius c = 24.8 cm. The inner sphere has a net charge of q1 = 9 nC and the conducting spherical shell has a net charge of q2 = -7 nC.   a. What is the surface charge density on the inside surface of the spherical shell? b. What is the surface charge density on the outside surface of the spherical shell? c. What is the value of the electric field at a distance r = 58 cm from the centre of the spheres? Please use a negative value to indicate the electric field points toward the centre of the spheres and a positive value to indicate away from the centre of the spheres.