This child acquires an electric charge by touching the charged metal shell. The charged hairs on the child’s head repel and stand out. What would happen if the child stood inside a large, charged metal shell? She would acquire (i) the same sign of charge as on the shell, and her hairs would stand out; (ii) the opposite sign of charge as on the shell, and her hairs would stand out; (iii) no charge, and her hairs would be relaxed; (iv) any of these, depending on the amount of charge on the shell.

This child acquires an electric charge by touching the charged metal shell. The charged hairs on the child’s head repel and stand out. What would happen if the child stood inside a large, charged metal shell? She would acquire (i) the same sign of charge as on the shell, and her hairs would stand out; (ii) the opposite sign of charge as on the shell, and her hairs would stand out; (iii) no charge, and her hairs would be relaxed; (iv) any of these, depending on the amount of charge on the shell.

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