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rockbreaker

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Hi, I am dealing with a problem in Electrostatics.

There is a sphere with a spherical cavity in it. The sphere itself does not have net charge, but inside the cavity, there is a point charge at the center of the cavity. What's the electric field inside the cavity?

Gauss' Law, E=Q/(4*Pi*epsilon0*r^2)

I assume the field is 0 because the induced charges on the cavity surface cancels the field of the point charge in it. Is this assumption correct?

## Homework Statement

There is a sphere with a spherical cavity in it. The sphere itself does not have net charge, but inside the cavity, there is a point charge at the center of the cavity. What's the electric field inside the cavity?

## Homework Equations

Gauss' Law, E=Q/(4*Pi*epsilon0*r^2)

## The Attempt at a Solution

I assume the field is 0 because the induced charges on the cavity surface cancels the field of the point charge in it. Is this assumption correct?

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