A small positive test charge of 0.02C is situated 1.5m away from a positive charge of 1C and 4.2m away from a second positive charge of 14C. What is the total potential energy of the test charge. The coulomb constant K = 9E9. Give your answer in GigaJoules (GJ)

4 charges, each 2 nC worth of charge, are arranged on the 4 corners of a square. The side length of the square is 1 meter. What is the electric potential in the center?

A spherical conductor has a charge of 20 uC and a diameter of 20cm (r = 10cm). If a test charge, q = 25mC, is to be moved from A to B, given that points A and B are 15 cm and 5 cm from the center of the conductor, respectively. Determine the following: A. The potential at A B. The electric potential energy at B C. The rate of change of the potential with respect to length or displacement in the conductor

An air capacitor, 5.80 uF, and a parallel plate is charged to a potential difference of 4.00x102 V and has a plate separation of 5.00 mm. Calculate the energy density in the region between the plates. A. u= 28.333mJ/m^3 B. u = 18.333mJ/m^3 C. u= 38.333mJ/m^3 D. u= 48.333mJ/m^3

m7df7 > $ 4 R F An isolated charged soap bubble of radius Ro= 5.25 cm has a potential of Vo = 231.0 V at its surface. If the bubble shrinks to a radius that is 27.0% of the initial radius, by how much AU does its electrostatic potential energy change? ▬▬ V Assume that the charge on the bubble is spread evenly over the surface, and that the total charge on the bubble remains constant. Use k = 8.99 x 10° N-m²/C² for the Coulomb force constant. Q Search % 5 FS T G O D A 6 B Y H & 7 N U 8 M 9 K DE O (DOLL prt sc AU = home B B 0 P ? end num lock 7 Po 4 1 CE 11:00 PM 2/18/20244 8 J 5 +/- O 2 9 PRE 3

9. An electron has been placed at the origin. The grid spacing is 1 Angstrom per small square this time. Now you have a nucleus with 12 protons at x = 4.0 Angstroms on the x-axis. What is the value of the electrostatic potential V at a point on the positive y-axis, at y = 7.1 Angstroms?     21.2 V     11.5 V     19.2 V     -2.0 V

On which level within this parallel plate apparatus would an electron have the most potential energy.   What is the minimum work needed to move a proton from Level A to Level B in joules?

Q6/ A 7.4 µC and -6.2 µC charge are placed 2.1 cm apart. At what points along the line joining them is the (a) the clectric field zero and (b) the electric potential zero?

Two charges A and B are fixed in place, at different distances from a certain spot. At this spot the potentials due to the two charges are equal. Charge A is 0.22 m from the spot, while charge B is 0.47 m from it. Find the ratio qB/9A of the charges. Number i Units

asap. complete solution. must be expressed in engineering notation.