Positive Charge Q Is Placed on a Conducting Spherical Shell $\pi$

question 25

Multiple Choice

Positive charge Q is placed on a conducting spherical shell with inner radius R₁ and outer radius R₂.A point charge q is placed at the center of the cavity.The magnitude of the electric field at a point in the interior of the conductor a distance r from the center is:

• A)0
• D)q/4 \(\pi\) r²
• E)Q/4 \(\pi\) r²

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