MediumNEET TEST
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A cube of edge length l is placed in a region of uniform horizontal electric field of magnitude E. Initially, as shown in Figure (a), one pair of opposite faces of the cube is perpendicular to the electric field lines. The cube is then rotated by an angle θ about a axis perpendicular to the electric field lines, as shown in Figure (b). What is the total magnitude of the electric flux entering the cube in this new rotated position?
A
El²(1 − sin(2θ))
B
El²(1 + cos(2θ))
C
El²(1 + sin(2θ))
D
El²(1 − cos(2θ))
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