\"Charge is distributed on the surface of a spherical conducting shell. A point
ID: 1640940 • Letter: #
Question
"Charge is distributed on the surface of a spherical conducting shell. A point particle with charge q is inside. If polarization effects are negligible the electrical force on the particle is greatest when:"? " A. it is near the inside surface of the balloon B. it is at the center of the balloon C. it is halfway between the balloon center and the inside surface D. it is anywhere inside (the force is same everywhere and is not zero) E. it is anywhere inside (the force is zero everywhere)" Answer: A (How?)
Explanation / Answer
the reason for that is when the particle moves near the inside surface, the charge on the shell moves away from that point to the point the particle is nearing, and hence a difference in charges builds up and the electrostatic force hence increases.
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