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Potential difference of Eab?

After finding the Cab = 4.2 microF for the attached figure(Q. 11) 

(Q.12) What potential difference Eab must be applied between points a and b so that the charge on each plate of each capacitor will have magnitude of 1 μC?

Answer in units of V.

Attachment image

1 Answer

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  • ?
    Lv 7
    1 month ago

    By symmetry each capacitor has a voltage Eab/2 across it.

    Eab/2 = Q/C = (1*10^-6)/(2.8*10^-6) = 0.357V

    Eab = 0.714V

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