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1. Electric Charges and Fields
easy
A rectangular surface of sides $10 \,cm$ and $15 \,cm$ is placed inside acyniform electric field of $25 \,V / m$, such that the surface makes an angle of $30^{\circ}$ with the direction of electric field. Find the flux of the electric field through the rectangular surface .................. $Nm ^2 / C$
A
$0.1675$
B
$0.1875$
C
$0$
D
$0.1075$
Solution

(b)
$\phi=E A \cos 30^{\circ}$
$=0.1875 \,Nm ^2 / C$
Standard 12
Physics
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