Two capacitors of capacitance 600 pF and 900 pF are connected in series across a 200 V supply. Calculate (i) the effective capacitance of the combination, (ii) the pd across each capacitor and (iii) the total charge stored in the system.

Explanation

Given: `C_1`=600 pF , `C_2` =900 pF
V=200V
`1/C_S=1/C_1+1/C_2=(C_1+C_2)/(C_1+C_2)`
`C_S=(C_1C_2)/(C_1+C_2)=(600xx900)/(600+900)=(54xx10^4)/(15xx10^2)=5400/15`=360 pF