Magnetic Shell
by admin on Saturday, April 17th, 2010 | Comments Off
Magnetic Shell
A magnetic shell is in the form of a disc of radius 5 cm.?
Its surface density is 5 poles per cm2 n its thickness is 5 mm. What will be the potential on the axis of the disc at a distance of 10 cm from the centre.
I = 5 poles per cm2
r = 5cm
t = 0.5 cm
x = 10cm
Strength of the shell
Ø = I x t = 5 x .05 = 2.5
Potential at P,
V = 2 pie Ø (1 - cos 0)
= 1.66
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