An isolated charged conducting sphere has a radius R = 15.0 cm. At a distance of r = 25.0 cm from the center of the sphere the electric field due to the sphere has a magnitude of E = 4.90 x 104 N/C. (a) What is its surface charge density (in uC/m2)? µC/m² (b) What is its capacitance (in pF)? pF (c) What If? A larger sphere of radius 26.0 cm is now added so as to be concentric with the first sphere. What is the capacitance (in pF) of the two-sphere system? pF

Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
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Chapter19: Electric Forces And Electric Fields
Section: Chapter Questions
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An isolated charged conducting sphere has a radius R = 15.0 cm. At a distance of r = 25.0 cm from the center of the
sphere the electric field due to the sphere has a magnitude of E = 4.90 x 104 N/C.
(a) What is its surface charge density (in uC/m2)?
µC/m²
(b) What is its capacitance (in pF)?
pF
(c) What If? A larger sphere of radius 26.0 cm is now added so as to be concentric with the first sphere. What is the
capacitance (in pF) of the two-sphere system?
pF
Transcribed Image Text:An isolated charged conducting sphere has a radius R = 15.0 cm. At a distance of r = 25.0 cm from the center of the sphere the electric field due to the sphere has a magnitude of E = 4.90 x 104 N/C. (a) What is its surface charge density (in uC/m2)? µC/m² (b) What is its capacitance (in pF)? pF (c) What If? A larger sphere of radius 26.0 cm is now added so as to be concentric with the first sphere. What is the capacitance (in pF) of the two-sphere system? pF
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