How do you add capacitances for two capacitors, C1 and C2, when connected in paralle? Ct-1/(C1 +1/ C2) O 1/Ct= C1 + C2 Ct =(C1 +C2)2 O ct = 1/C1-1/C2 O Ct-C1 +C2 Oct = 1/C1 +C2 Oct-C1+1/ C2 1/Ct = 1/C1 + 1/C2