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Learning Introductory Physics with Activities

Section 25.11 Conductors and Current

Activity 25.11.1. Warm-Up.

Suppose you place a positive charge in a cavity inside the conductor below. Sketch a charge diagram for the conductor.
A square conductor with a small square cavity in the bottom right.  A positive point charge lies within the cavity.
Figure 25.11.1. A positive charge within a cavity in a conductor.