Question #291429

A 1000mf capacitor is charged to 10v and 16uf capacitor is charged to 400v.these are connected in parallel with plates carrying similar charges.Determined the total stored energy before and after joining them.

1
Expert's answer
2022-01-28T08:14:40-0500

The energy is


E=(C1V1+C2V2)22(C1+C2)=50 J.E=\dfrac{(C_1V_1+C_2V_2)^2}{2(C_1+C_2)}=50\text{ J}.


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