defence exam Army Havildar SAC Mock Test Series 2025 Physics Electric Fields and Gauss' Law Electric Flux
A rectangular area of sides 4.0 cm and 5.0 cm is placed in an electric field E = \(\rm \left(4.0\times 10^2 \frac{N}{c}\right)\) i such that the normal unit vector for the area is \(\rm \left[\left(\frac{1}{2}\right)i+\left(\frac{\sqrt2}{2}\right)j\right]\). The electric flux through the rectangle is:
1
0.69 N m2/C
2
0.40 N m2/C
3
0.20 N m2/C
4
0.35 N m2/C