Two concentric spherical conducting shells are separated by vacuum. The inner shell has total charge +Q and radius a, and outer shell has charge -Q and radius b. Using integration of the electric field energy density find the electric energy stored in the system. Take Q = 28 µC, a = 20 cm and b = 70 cm. I I I The energy, U₁ = a Q The energy, U = 12.582440 Units J Using the obtained energy and formula for the energy stored in a capacitor, U = 2C capacitance of the system. -Q Units Select an answer The capacitance, Co= 3.1154528 X Units Select an answer ✓ Repeat the calculations for the same system with a dielectric material of K = 4.5 inserted in between the shells. The capacitance, C₁ = .37489732 X Units pF " find the

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Two concentric spherical conducting shells are separated by vacuum. The inner shell has total charge +Q
and radius a, and outer shell has charge -Q and radius b. Using integration of the electric field energy
density find the electric energy stored in the system. Take Q = 28 µC, a = 20 cm and b = 70 cm.
I
1
The energy, U₁ = 12.582440✔✔ Units J
The energy, U₁
a
=
=
Using the obtained energy and formula for the energy stored in a capacitor, U
capacitance of the system.
The capacitance, Co 3.1154528 X Units Select an answer ✓
Repeat the calculations for the same system with a dielectric material of k = 4.5 inserted in between the
shells.
The capacitance, C₁
=
-Q
Units Select an answer ✓
.37489732 X Units pF
Q²
20¹
find the
Transcribed Image Text:Two concentric spherical conducting shells are separated by vacuum. The inner shell has total charge +Q and radius a, and outer shell has charge -Q and radius b. Using integration of the electric field energy density find the electric energy stored in the system. Take Q = 28 µC, a = 20 cm and b = 70 cm. I 1 The energy, U₁ = 12.582440✔✔ Units J The energy, U₁ a = = Using the obtained energy and formula for the energy stored in a capacitor, U capacitance of the system. The capacitance, Co 3.1154528 X Units Select an answer ✓ Repeat the calculations for the same system with a dielectric material of k = 4.5 inserted in between the shells. The capacitance, C₁ = -Q Units Select an answer ✓ .37489732 X Units pF Q² 20¹ find the
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