A solução do Abhay Singh (Solutions to I. E. Irodov's Problems in General Physics) está copiada nesses sites:
Resposta
"Now, charge flown through section 1=(q1+q2)−0=C2ξ
and charge flown through section 2=−q1−q=−C1+C2ξC1C2."
De onde ele tirou isso?