An isolated charged soap bubble of radius Ro = 4.65 cm is at a potential of V = 283.0 volts. If the bubble shrinks to a ridios that is 39.0% of the initial radius, by how much does its electrostatic potential encergy U change? Assume that the charge on the bubble is spread evenly over the surface, and that the total charge on the bubble remains constant. AU = U Utal = TOOLS

A charged conducting spherical shell of radius R = 3 m with total charge q = 23 μC produces the electric field given by E⃗ (r)={014πϵ0qr2r̂ forforr<Rr>R(PICTURE ATTACHED OF EQUATION) a. Enter an expression for the electric potential inside the sphere ( r < R ) in terms of the given quantities, assuming the potential is zero at infinity.  V(r)= b. Calculate the electric potential, in volts, at radius r inside the charged shell. V(r) =

Find the potential at point P₂ in the diagram due to the two given charges. + +5 mC 4 cm- P₁ T 3 cm 2 cm 3 cm O a. 900MV O b. 0.8GV O C. -900MV O d. -4GV P3 4 cm- m 2 cm P2₂ -10 MC ←

B7