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AP Physics 2
10.3 Electric Fields
IntermediateMCQConceptual20.5k
A cross-sectional view of a thick-walled hollow spherical conducting shell placed in a uniform external electric field. Parallel horizontal lines with arrowheads pointing to the right represent the external electric field E_0, spaced evenly above and below the shell. The shell consists of a shaded metallic region bounded by two concentric circles. The central area inside the inner circle is an empty cavity labeled Cavity. No charge signs or field lines are drawn inside the shell or cavity. No other labels, lines, text, or axes appear.
A hollow conducting shell placed in a uniform external electric field.
An uncharged, hollow spherical conducting shell is placed in a uniform external electric field \(\vec{E}_0\) directed to the right, as shown. Sensor measurements confirm that the net electric field inside the empty cavity is zero. Which of the following best explains why the electric field inside the cavity is zero?

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