С общ = С1 * С2 / С1 + С2 = 20 * 80 * 10^-12*10^-12 = 16*10^-13 Ф
U общ = q/C obsh = 500*10^-9 / 16*10^-13=31.25*10^4 B
U1=q/C1= 500*10^-9/20*10^-12=25*10^3 B
U2=q/C2=500*10^-9/80*10^-12 =6.25*10^3 B
С общ = С1 * С2 / С1 + С2 = 20 * 80 * 10^-12*10^-12 = 16*10^-13 Ф
U общ = q/C obsh = 500*10^-9 / 16*10^-13=31.25*10^4 B
U1=q/C1= 500*10^-9/20*10^-12=25*10^3 B
U2=q/C2=500*10^-9/80*10^-12 =6.25*10^3 B