An initially uncharged hollow metallic sphere with radius of 5 cm has a small object with a charge of +15 µC carefully placed at the center of the sphere through a hole in the latter's surface.What charge resides inner surface of the sphere?
A)-2 000 µC
B)-15 µC
C)+15 µC
D)zero
E)+2 000

Question

An initially uncharged hollow metallic sphere with radius of 5 cm has a small object with a charge of +15 µC carefully placed at the center of the sphere through a hole in the latter's surface.What charge resides inner surface of the sphere?
A)-2 000 µC
B)-15 µC
C)+15 µC
D)zero
E)​+2 000

Quizplus · Accepted Answer

The charge on the inner surface of the sphere will be -15 µC to neutralize the effect of the +15 µC charge placed at the center, ensuring the electric field inside the conductor is zero.

An Initially Uncharged Hollow Metallic Sphere with Radius of 5