EXERCISE 5 Two parallel plates have equal and opposite charges. When the space between the plates is evacuated, the electric field is E=3.30 X 105 V/m. When the space is filled with dielectric, the = 2.50 X 105 V/m. (a) What is the charge density on each surface of the electric field is E dielectric ? (b) What is the dielectric constant ?

Problem 1 Two metal spheres A and B with radii RA and RB rest far away from one another but are connected by a long wire with a switch. With the switch disconnected, only sphere A is charged, with an initial charge Q1. a) What is the initial magnitude of the electric field |E₁| at the surface of sphere A? b) What is the initial electric potential V, at the surface of sphere A, assuming V → 0 an infinite distance away? c) The switch is now connected and the spheres reach electrostatic equilibrium. In terms of the radii, electric constant, and initial charge, what are the final charges QA and QB on each sphere? Assume the wire can transfer charge but only hold a negligible amount. d) What are the final potentials V₁ and VB at the surfaces of each sphere? e) What are the final electric field magnitudes |Ē₁] and |ĒB] at the surfaces of each sphere?

PART B ONLY PLEASE

Question 14 of 35 A particle that carries a net charge of-41.8 uC is held in a constant electric field that is uniform over the entire region. The electric field vector is oriented 25.2° clockwise from the vertical axis, as shown in the figure. If the magnitude of the electric field is 4.32 N/C, how much work is done by the electric field as the particle is made to E move a distance of d = 0.556 m straight up? d. 25.2° work: J What is the potential difference AV between the particle's initial and final positions? AV =

I am stuck on this physics homework, any help would be great!

1

Part A Two stationary positive point charges, charge 1 of magnitude 3.85 nC and charge 2 of magnitude 1.70 nC are separated by a distance of 39.0 cm An electron is released from rest at the point midway between the two charges, and it moves along the line connecting the two charges. What is the speed vfinal of the electron when it is 10.0 cm from charge 1? Express your answer in meters per second. > View Available Hint(s) ΑΣφ Ufinal m/s

Part A How far must the point charges qi = 7.10 µC and q2 = -26.1 µC be separated for the electric potential energy of the system to be -166 J ? r = cm Submit Request Answer Provide Feedback Next >