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SalsaOnMyTaco
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Homework Statement
When the switch is closed, Potential drops to 40v across C1 & C2(Parallel series). Find the Capacitance of C2
Homework Equations
Before switch is closed
C1=300uF and holds a charge of Q1=3e4 uC V=100vAfter switch is closed
V'=40v
The Attempt at a Solution
V1=V2
So Q1/C1=Q2/C2
Q=Q1+Q2
How could I find the charge on C2?