Q 1 -Find the electric field a distance z above the center of a square loop (side a) that has charge density sigma.
Q-2 -Two spheres, each of radius R and carrying uniform charge densities +p and
—p, respectively, are placed so that they partially overlap . Show that the field in the region of overlap is constant,
and find its value.
Q-3 -Would the field in the overlap be constant if both have charge density +p.
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1 Answers
1q1 visualise three dimensionally
u will get
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z |
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a2
hypotenuse length is √(a2)2+z2
cosθ=a2 √(a2)2+z2
so find the electric field due to a wire of length a from a distance
√(a2)2+z2 from it cente and multiply it by cosθ and multiply it by 4
