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1. Electric Charges and Fields
easy

જો વિદ્યુતફલક્સ ગાઉસના પૃષ્ઠમાંથી બહાર આવતું હોય તો પૃષ્ઠ સાથે શું સંકળાયેલું હશે ?

A

ઋણ વિદ્યુતભાર

B

ધન વિદ્યુતભાર

C

ધન અને ઋણ વિદ્યુતભાર અને સમાન

D

શૂન્ય વિદ્યુતભાર

Solution

As we know from gauss law that, $\phi=\frac{ Q _{\text {inc }}}{\varepsilon_0}$ and also $\phi$ is defined as $\phi=$ E.da.

$\Rightarrow$ The direction of electric field decides the nature of flux which further define the nature of charge and vice-verse.

$\therefore \quad \Rightarrow$ From -ve charge $\vec{E}$ comes inward or we can say $\phi$ enters the gaussion surface but from +ve charge $\phi$ leaves the surface as $\vec{E}$.

Standard 12
Physics

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