Question: Q 3 : spherical capacitor has a total charge Q = 2 0 C , is filled by dielectric with dielectric constant 1 2 .

Q3: spherical capacitor has a total charge Q=20C, is filled by dielectric with dielectric constant 12. If the inner radius a=10mm and outer radius b=15mm.
a. What is the capacitance of this capacitor (in pF)?
b. What is hte energy (in J) stored in this capacitor?
Q 3 : spherical capacitor has a total charge Q =

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