Question: You are helping to design a new electron microscope to investigate the structure of the HIV virus. A new device to position the electron beam

You are helping to design a new electron microscope to investigate the structure of the HIV virus. A new device to position the electron beam consists of a charged circle of conductor. This circle is divided into two half circles separated by a thin insulator so that half of the circle can be charged positively and the other half can be charged negatively. The electron beam will go through the center of the circle. To complete the design your job is to calculate the electric field in the center of the circle as a function of the amount of positive charge on the half circle, the amount of negative charge on the other half circle, and the radius of the circle.

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To calculate the electric field at the center of the circle we need to consider the contributions from both the positively and negatively charged semi... View full answer

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