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Introducing Flux

If E⃗ = 2i +3...

Question

If $\to E$ = 2i +3j +4k and $\to A$ = 3i +2j +4k. What is the flux of the given $\to E$ through the area?

A

$21 N m^{2} / C$

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B

$28 N m^{2} / C$

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C

$23 N m^{2} / C$

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D

$30 N m^{2} / C$

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Solution

The correct option is B
$28 N m^{2} / C$

flux is the dot product of E and A

Flux = 6+6+16 = $28 N m^{2} / C$

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