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1. Electric Charges and Fields
easy
If an electric field is given by $10 \hat{i}+3 \hat{j}+4 \hat{k}$, calculate the electric flux through a surface of area $10$ units lying in $y z$ plane ....... units
A
$100$
B
$10$
C
$30$
D
$40$
Solution
(a)
$\vec{E}=10 \hat{i}+3 \hat{j}+4 \hat{k}$
$\vec{A}=10 $
So, $\phi=\vec{E} \cdot \vec{A}=100$ unit
Standard 12
Physics