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What force on the charge q due to the cone

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Force from a cone **

(a) A charge q is located at the tip of a hollow cone (such as an ice cream cone without the ice cream) with surface charge density σ . The slant height of the cone is L, and the half-angle at the vertex is θ . What can you say about the force on the charge q due to the cone?

(b) If the top half of the cone is removed and thrown away (see Fig. 1.31), what is the force on the charge q due to the remain- ing part of the cone? For what angle θ is this force maximum?

2232_fig.png

          Figure 1.31.

Reference no: EM13885703

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