# Physics

posted by .

There are two conducting concentric hollow spheres of outer radii R2 and R1 (R2>R1). The thickness of the material of both spheres is d.

The inner sphere is negatively charged with charge density −σ1. The larger sphere is positively charged with charge density +σ2.

(a) What is the electric field (magnitude and direction) inside the inner sphere?
(Direction: use units vectors in spherical coordinates (rˆ,θˆ,ϕˆ)

b)Magnitude: (Express your answer in terms of the following variables, if necessary R1, R2, σ1, σ2, d, r and the constant ϵ0. To enter σ1 type sigma_1, for σ2 type sigma_2, for R1 type R_1, etc..)

((d) r<R2 but larger than R2−d
Direction: use units vectors in spherical coordinates (rˆ,θˆ,ϕˆ)

## Similar Questions

1. ### Physics Conducting Spheres

1. Two concentric conducting spherical shells have radii of 0.145 m. and 0.215 m. The inner sphere bears a charge of -3.00E-08 C. An electron escapes from the inner sphere with negligible speed. Assuming that the region between the …
2. ### science

There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects …
3. ### science

There are two identical, positively charged conducting spheres fixed in space. The spheres are 44.6 cm apart (center to center) and repel each other with an electrostatic force of F1 = 0.0675 N. Then, a thin conducting wire connects …
4. ### Physics

There are two conducting concentric hollow spheres of outer radii and ( ). The thickness of the material of both spheres is . The inner sphere is negatively charged with charge density . The larger sphere is positively charged with …
5. ### Physics

There are two conducting concentric hollow spheres of outer radii R2 and R1 ( R2>R1 ). The thickness of the material of both spheres is d . The inner sphere is negatively charged with charge density -σ1, . The larger sphere …
6. ### Physics

There are two conducting concentric hollow spheres of outer radii R2 and R1 ( R2>R1 ). The thickness of the material of both spheres is d . The inner sphere is negatively charged with charge density -σ1, . The larger sphere …