Please answer all with steps :(((

(Q o) (8 o) Electric potential: Two solid insulating spheres, each 0.5 m in diameter, are placed 1 m apart center to center. One carries a uniformly distributed charge +Q; the other carries a uniformly distributed charge Q. If a voltmeter is connected to the farthest points (a and b) on their surfaces, nd the sign and magnitude of Va V1,. ') I L=1m l +Q -Q a- -b R=0.25m R=O.25m An insulating wire is bent into a semicircular arc of radius R, and an electric charge Q is uniformly distributed along the wire. Find the electric potential at the center of curvature (P) if the potential is at innity is set to be zero. Capacitors: In the following gure, C1 = C5 = 12 tiF and C2 = C3 = C4 = 8 ,uF. A potential difference Va V}, = 36 volts is applied between a and Z). Find the equivalent capacitance Ca}, between a and [7; Find the energy stored in each of the 5 capacitors. c1 (33 HT C2 HQ 05 c4 Electromotive force The terminal voltage across a battery with E = 24 volts is Vab = Va Vb = 21 volts when it is connected to a resistor R and the current in the circuit reads I = 4 A. Find the values of the internal resistor r and the unknown resistor R. r 8 5E +|";, 1:4AV III R