Chapter 4-Universe as we know it

Chapter 4-Universe as we know it - Chapter 4 Radiation and...

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Chapter 4 Radiation and Spectra ¾ Maxwell's Theory of Electromagnetism In the vicinity of an electric charge, another charge feels a force of attraction or repulsion: Opposite charges attract; like charges repel. For stationary charges only electrostatic interaction is observed. For charges in motion magnetism is observed along with electric interaction. – During the 19 th century experiments with electric charges have demonstrated that magnetism was the result of moving charged particles.
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Concept for a Field Describing the action of a force through the concept of a field. Stationary electric charges produce electric fields moving electric charges also produce magnetic fields Changing magnetic fields could produce electric currents (and thus changing electric fields), and changing electric currents could (in turn) produce changing magnetic fields.
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Electromagnetic Radiation By analyzing oscillating (moving constantly back and forth) Maxwell found that the resulting pattern of electric and magnetic fields would spread out rapidly through space.
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This note was uploaded on 09/12/2011 for the course RELIGION 101 taught by Professor Staff during the Fall '10 term at Temple.

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Chapter 4-Universe as we know it - Chapter 4 Radiation and...

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