External Field is Weakened in the Dielectric Material

External field is weakened in the dielectric material
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External electric field \( \class{purple}{\bold symbol{E}} \) is attenuated \( (\class{green}{\chi_{\text e}} < 0) \) or amplified \( (\class{green}{\chi_{\text e}} > 0) \) or strengthened \( (\class{green}{\chi_{\text e}} < 0) \) and is on average \( \class{purple}{\boldsymbol{E}_{\text m}} \).

+ Perfect for high school and undergraduate physics students
+ Contains over 500 illustrated formulas on just 140 pages
+ Contains tables with examples and measured constants
+ Easy for everyone because without vectors and integrals

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