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Introducing Flux

If E⃗=2 i+3 j...

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 Nm²/C

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B

28 Nm²/C

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C

23 Nm²/C

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D

30 Nm²/C

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Solution

The correct option is B
28 Nm²/C

flux is the dot product of E and A

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

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