Question

2 решите пожалуйста)

Answer 1

1/c' = 1/c1 + 1/c2 = 1/1.2 + 1/0.6 = 3/1.2;
c' = 1.2/3 = 0.4;
c3 + c' = cобщ.;
c3 = cобщ. - c' = 2 - 0.4 = 1.6мкФ;
C = q/U; q = CU = 1.6 * 200 = 320мкКл;
W = CU^2/2 = 1.6*200^2/2 = 32000*10^-6 = 32мДж