Question

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$\underline{\pmb{\tt{\blue{Question\;:}}}}$

>> what is electric flux. explain?
=> Provide some conditions in which flux will be zero and negative ?
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Answer 1

Answer:

If there is no net charge within a closed surface, every field line directed into the surface continues through the interior and is directed outward elsewhere on the surface. The negative flux just equals in magnitude the positive flux, so that the net, or total, electric flux is zero.

Explanation:

Electric flux, property of an electric field that may be thought of as the number of electric lines of force (or electric field lines) that intersect a given area. ... The negative flux just equals in magnitude the positive flux, so that the net, or total, electric flux is zero.

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Answer 2

$\underline{\maltese{\underline{\pmb{\sf{\red{ Concept\; of\; Electric \;Flux \;:}}}}}}$

• $:\green\mapsto$Electric flux is the rate of flow of electric field through a given area and is proportional to the number of field lines going through a virtual surface.

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$\underline{\maltese{\underline{\pmb{\sf{\blue{Expression \;For \;Electric \;Flux\;:}}}}}}$

• $:\pink\implies$ Φ = EAcosθ

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$\underline{\dag{\underline{\pmb{\sf{\pink{Unit\; of\; electric\; flux\;:}}}}}}$

• $:\purple\implies$ Weber or wb

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$\underline{\bigstar{\underline{\pmb{\sf{\orange{Some\; conditions\; in \;Electric \;Flux\;:}}}}}}$

• $\blue\twoheadrightarrow$If θ = 90° ; then flux will be [ 0 ]

• $\purple\twoheadrightarrow$If θ = 180° ; then Will be [ -ve ]

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