The thorough solutions can be found in the library on reserve.
Gravitational force is much weaker than repulsive electric force.
No current through first resistor when S is closed and 0.09 A through second resistor. 1.08 mJ stored in 15 microfarad capacitor and 1.8 mJ stored in 25 microfarad capacitor. The house circuitry could NOT handle this wattage. A resistance of 2.5 x 10 -2 ohms should be placed in parallel with the galvanometer. Flux lines will penetrate with different intensity and direction.