a sphere of radius R is having charge Q uniformly distributed over it the energy density of electric field in the air at distance r (greater thanR)is given by
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The magnitude of electric field at a distance r, which is greater than the radius R, of a solid sphere having charge Q is given by the formula:
E = (k x Q )/ (r^2)
The volume enclosed by a sphere of radius r is given by the formula:
V = (4 x pi x r^3) / 3
Energy density is defined as the ratio of electric field intensity at a distance r and the volume occupied the sphere of radius r. It is given by the formula:
ED = E / V
ED = (3 x k x Q) / (16 x pi^2 x epsilon x r^5)
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A sphere of radius R is having charge Q uniformly distributed over it the energy density of electric field in the air at distance r (greater than R) is given by:
E = σ2∈0E = σ2∈0
F = Edr = σ2∈0F = Edr = σ2∈0 (σdA) (σdA)
= FdA = σ2∈0FdA = σ2∈0 = P = P
Force = P × πR2 = P × πR2
= σ22∈0πR2 = σ22∈0πR2
= Q216π2R2πR22∈0 = Q216π2R2πR22∈0
= Q232π∈0R2Q232π∈0R2
E = σ2∈0E = σ2∈0
F = Edr = σ2∈0F = Edr = σ2∈0 (σdA) (σdA)
= FdA = σ2∈0FdA = σ2∈0 = P = P
Force = P × πR2 = P × πR2
= σ22∈0πR2 = σ22∈0πR2
= Q216π2R2πR22∈0 = Q216π2R2πR22∈0
= Q232π∈0R2Q232π∈0R2
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