The figure shows two thin plastic spherical shells (shown in cross section) that

Question

The figure shows two thin plastic spherical shells (shown in cross section) that are uniformly charged. The center of the larger sphere is at < 0, 0, 0 >; it has a radius of 12 cm and a uniform positive charge of 6 ? 10-9 C. The center of the smaller sphere is at < 25, 0, 0 > cm; it has a radius of 3 cm and a uniform negative charge of -3 ? 10-9 C.

The figure shows two thin plastic spherical shells (shown in cross section) that are uniformly charged. The center of the larger sphere is at ; it has a radius of 12 cm and a uniform positive charge of 6 ? 10 -9 C. The center of the smaller sphere is at cm; it has a radius of 3 cm and a uniform negative charge of -3 ? 10 -9 C.

Explanation / Answer

a)
Field due to a charged spherical sphere at a point inside the shell is zero .

The radius of the sphere is 12 cm and the field at a distance 6cm from the centere (which is inside the sphere) is zero.

b)

The x distance between is 0.25 m
The y distance is given as 0.03 m

The field due to the small sphere at this point is
- 9e9* *3e-9/0.03

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