Alls separated cm A spherical capacitor is formed from two conc by a vacuum. The inner sphere has radius 12.5 cm and the outer sphere has radius 14.8 c A potential difference of 120 V is applied to the capacitor. (a) What is the energy density at inside the outer sphere? (c) For the parallel-plate capacitor the energy density is uniform in r=12.6cm, just outside the inner sphere? (b) What is the energy density at r-14.7cm, just ( the region between the plates, except near the edges of the plates. Is this also true for the spherical capacitor? (a) 1. 64x 10-4J/m³; (b) 8. 83x 10-5J/m³; (c)no InV R

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精選軋閃
by a vacuum. The inner sphere has radius 12.5 cm and the outer sphere has radius 14.8 cm
A spherical capacitor is formed from two concentric spherical conducting shells separated
A potential difference of 120 V is applied to the capacitor. (a) What is the energy density at
r=12.6cm, just outside the inner sphere? (b) What is the energy density at r-14.7cm, just
inside the outer sphere? (c) For the parallel-plate capacitor the energy density is uniform in
the region between the plates, except near the edges of the plates. Is this also true for the
spherical capacitor?
**: (a) 1. 64x 10-4J/m³; (b) 8.83× 10-5J/m³ ; (c)no
INV
R
12.5cm
14.8 cm
XR₁ R₂
12.5x14.8
(= K (R₁-P₁) = 2x107. (23)
u=²&² E²
U=
32x²
32元
d. 13-1/6¹
Transcribed Image Text:精選軋閃 by a vacuum. The inner sphere has radius 12.5 cm and the outer sphere has radius 14.8 cm A spherical capacitor is formed from two concentric spherical conducting shells separated A potential difference of 120 V is applied to the capacitor. (a) What is the energy density at r=12.6cm, just outside the inner sphere? (b) What is the energy density at r-14.7cm, just inside the outer sphere? (c) For the parallel-plate capacitor the energy density is uniform in the region between the plates, except near the edges of the plates. Is this also true for the spherical capacitor? **: (a) 1. 64x 10-4J/m³; (b) 8.83× 10-5J/m³ ; (c)no INV R 12.5cm 14.8 cm XR₁ R₂ 12.5x14.8 (= K (R₁-P₁) = 2x107. (23) u=²&² E² U= 32x² 32元 d. 13-1/6¹
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