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184_notes:comp_super [2017/08/31 14:58] – dmcpadden | 184_notes:comp_super [2018/01/18 22:18] – dmcpadden | ||
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+ | Section 15.9 in Matter and Interactions (4th edition) | ||
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===== Superposition and the Computer ===== | ===== Superposition and the Computer ===== | ||
- | The principle of superposition is an overarching and powerful tool in much of physics. It is useful well beyond the electric field as you will see with the magnetic field (and as you might see in future physics courses in quantum mechanics). The fact that the electric field obeys the principle of superposition | + | The principle of superposition is an overarching and powerful tool in much of physics. It is useful well beyond the electric field as you will see with the magnetic field (and as you might see in future physics courses in quantum mechanics). The fact that the electric field obeys the principle of superposition |
==== The Superposition Principle ==== | ==== The Superposition Principle ==== | ||
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$$\vec{E}_{net} = \sum \vec{E}_i = \vec{E}_1 + \vec{E}_2 + \vec{E}_3 + \dots$$ | $$\vec{E}_{net} = \sum \vec{E}_i = \vec{E}_1 + \vec{E}_2 + \vec{E}_3 + \dots$$ | ||
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+ | where $\vec{E}_1$ would be the electric field from one point charge, $\vec{E}_2$ would be the electric field from a second point charge, and so on. For this week, we will focus on superposition of point charges, but | ||
You have seen how this principle can be used to find the electric field due to point charges and how it has been used for " | You have seen how this principle can be used to find the electric field due to point charges and how it has been used for " |