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Questions  

A condenser has two conducting plates of radius 8cm separated by a distance 5mm. It is charged with a constant current  of 0.2A. The magnetic field at a point 4cm from the axis in the gap is 

a
2.5×10−7T
b
2.25×10−7T
c
3.25×10−7T
d
4.25×10−7T

detailed solution

Correct option is A

For r

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A capacitor is made of two circular plates each of radius 1m. It is being charged by an external source. Find the magnetic field at a distance of 2m from the center of the plate in the plane midway between them, when the charging current is 2A.


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