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#### Question

Given the electric field in the region `vecE=2xhati`, find the net electric flux through the cube and the charge enclosed by it.

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"The outward electric flux due to charge +*Q* is independent of the shape and size of the surface which encloses is." Give two reasons to justify this statement.

A point charge +10 μC is a distance 5 cm directly above the centre of a square of side 10 cm, as shown in Fig. 1.34. What is the magnitude of the electric flux through the square? (*Hint: *Think of the square as one face of a cube with edge 10 cm.)

A point charge of 2.0 μC is at the centre of a cubic Gaussian surface 9.0 cm on edge. What is the net electric flux through the surface?

Consider a uniform electric field E** **= 3 × 10^{3} îN/C. (a) What is the flux of this field through a square of 10 cm on a side whose plane is parallel to the *yz *plane? (b) What is the flux through the same square if the normal to its plane makes a 60° angle with the *x*-axis?

Write its (electric flux.) S.I unit.