Physics Electrostatics Level: Misc Level
A spherical volume (radius = R ) is filled with a nonuniform stationary charge which has a volume density that varies as that varies as rho = alpha r , where r, is the distance from the center of the sphere. Find an expression for the electric field at a point r, from the center of the, where where r is greater than R.
Physics Electrostatics Level: Misc Level
A thin spherical conducting shell has an inner radius of 6.8 cm and an outer radius of 7.0 cm. The shell carries a net charge of + 5 p C which results in a surface charge density magnitude on the inner surface of ( Hint: What do you know about the electric field due to a conductor? also find the surface charge density on the outter surface.
Physics Electrostatics Level: Misc Level
Two infinite parallel surfaces carry uniform charge densities of 0.20 n C/ m 2 and - 0. 60 n C /m 2. What is the magnitude of the electric field at a point between the two surfaces? (Assume the planes are nonconducting. It may help to draw a sketch showing the electric field lines between the planes.)
Physics Electrostatics Level: Misc Level
A charge of uniform surface density 0.20 n C /M2 is distributed over the entire xy - plane. What is the magnitude of the electric field at any point having z = 2.0 m? ( Assume the plane is nonconducting. )
Physics Electrostatics Level: Misc Level
A charge of 0.80 n C is placed at the center of a cube that measures 4.0 m along each edge. What is the electric flux through one face of the cube?
Physics Electrostatics Level: Misc Level
A point charge + Q is located on the x -axis at x = a, and a second point charge - Q is located on the x - axis at x = - a. A Gaussian spherical surface with radius r = 2 a is centered at the origin. The flux through this Gaussian surface is
a. zero because the net charge enclosed by the Gaussian surface is zero
b. greater then zero
c. zero because at every point on the surface the electric field has no component perpendicular to the surface
d.zero because the electric field is zero at every point on the surface
e.none of the above
Physics Electrostatics Level: Misc Level
A uniform linear charge density of 4.0 n C /m is distributed along the entire x - axis. Consider a spherical ( radius = 5.0 cm ) surface centered on the origin. Determine the electric flux for this surface.
Physics Electrostatics Level: Misc Level
Charges q and Q are placed on the x -axis at x = 0 and x = 2. 0 m, respectively. If q = 40 p C and Q = + 30 p C, determine the net flux through a spherical surface (radius = 1.0 m) centered on the origin.
Physics Electrostatics Level: Misc Level
Two charges of 15 pC and -40 p C are inside a cube with sides that are 0.40 m in length. Determine the net electric flux for the surface of the cube.
(Note:1 p C= 1 x 10 -12 C. )
Physics Electrostatics Level: Misc Level
Calculate the magintude and direction of the electrical field at a point P which is 25 cm to the right of a point charge Q = 3.2 x 10 to the -6 C.
Physics Electrostatics Level: Misc Level
Determine the maginitude of the electrical force on the electron of a hydrogen atom exerted by the single proton that the atoms nucleus. Assume the average distance between the revolving electron and the proton is r =0.51 x 10 to the - 10 m.
Physics Electrostatics Level: University
CapacitorFind voltage across and charge on each capacitor for circuits below.
Question Diagram
Physics Electrostatics Level: University
Collombs LawOn planet Tehar the acceleration of gravity is the same as that on Earth but three is also a strong downward electric field with the field being unifon planet's surface A 1.70 kg ball having a charge of 4.40 uC thrown upward at a speed of 21.4 m/s and it hits the ground after an interval of 3.84s. WI difference between the starting point and the top point of the trajectory?
Physics Electrostatics Level: University
Electric FieldTwo charge parallel plates create a uniform electric field of 3 N/C between the plates. The left plate is positive and the right plate is negative. Sev been identified in this region and are labelled in the figure.
Which of the following statements are true about the static electrical properties ( E field potential etc) of the case depicted in the figure above?
(Give ALL correct answer B. AC. BCD.... or None)
(a) The electric field at N is zero
(b) An electron placed at M would feel a greater magnitude of electric force as compared to a proton at M
(c) The potential difference between P and M is non-zero
(d) Equipotential surfaces form planes that are perpendicular to the plates.
(e) The electric field at P is equal to the electric field at N
Question Diagram
Physics Electrostatics Level: University
PotentialAn electron from starts rest 70.6 cm from a fixed point charge with Q = -0.146uC. How fast will the electron be moving when it is very far away?
