1 Help Ho k 5 Begin Date: 221 201 8 12:0 :00 AM-Due Date, 2/28 2018 i i:59:00 PM

Question

1 Help Ho k 5 Begin Date: 221 201 8 12:0 :00 AM-Due Date, 2/28 2018 i i:59:00 PM E nd Date: 3,14 2018 i 159:00 PM e (13%) Problem 3: Two conducting concentric spherical shells have radii a-0.17 m and b=0.275 m. Otheexpertta.com 25% Part (a) Express the capacitance of the two concentric shells in terms of radii a and b and the Coulomb constant k. Grade Summary Deductions 0% Potential 100% Attempts zemaining 15 (per attempt) detailed view Subenit Hint I give up! Hints: 0% deduction per hint. Hints remaining: 1. Feedback: 0% deduction per feedback. 25% Part (b) Calculate the numerical value of the capacitance in F. 25% Part (c) Express the capacitance C through the potential difference V across the capacitor and charge Q. 25% Part (d) If the charge in the inner sphere is +Q = 3 C, the outer sphere Q--3 pC, calculate the electric potential difference V between the outside and the inside conductors in V

Explanation / Answer

a) Capacitance is C = 1/{k*[(1/a)-(1/b)]}

b) C = 1/(9*10^9*((1/0.17)-(1/0.275))) = 4.95*10^-11 F

c) C = Q/dV

d) dV = Q/C = (3*10^-6)/(4.95*10^-11) = 60606 V

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