Question

There exists an electric field of 100 N/C along Z—direction. The flux passing through a square of 10 cm sides placed on XY plane inside the electric field is ______ (A) 1.0 Nm²/C
(B) 2.0 Vm
(C) 10 Vm
(D) 4.0 Nm²/C

Answer 1

Answer:

(A) 1.0 Nm²/C

Explanation:

Electric field = 100 N/C (Given)

Side of square = 10cm (Given)

Electric flux = E.S

E = 100i (N/C)

Side of the square, s = 10 cm = 0.1 m

Area of the square, A = s² = 0.01 m²

Area vector (S) will be normal to the plane  

Therefore

Electric flux = 0.01 × 100k = 1

Hence, the flux through the plane in x-y plane would be 1.0 Nm²/C.