The SI unit of electric flux is

N / C

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N m / C

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N m^{2}

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N m^{2} / C

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Solution

The correct option is D $N m^{2} / C$

$Step 1: Units of Electric field and Area$
We know that, Electric field, $E = \frac{F}{q}$
Therefore, Unit of electric field $E$ will be $N / C$
Unit of area $A$ will be $= m^{2}$

$Step 2: Unit of Electric Flux$

Formula of electric flux-
$ϕ = \to E . \to A$
Hence, unit of flux $= \frac{N}{C} . m^{2}$
$= N m^{2} / C$
Option D is correct

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