Question

1. Apply Gauss's theorem to calculate the electric
field of a thin infinitely long straight line of charge,
with a uniform charge density of Cm1.
An electric dipole consists of charges + 2 x
10-8 C. separated by a distance of 2 mm. It is
placed near a long line charge of density 4.0 x 10
Cm, as shown in Fig., such that the negative
charge is at a distance of 2 cm from the line
charge. Calculate the force acting on the dipole.​

Answer 1

Answer:

Charges outside the surface will not contribute to flux. Electric field due to an infinitely long straight uniformly charged wire : ... By symmetry, the magnitude of the electric field will be the same at all points on the curved surface of the cylinder and directed radially outward. E and ds are along the same direction.

Explanation:

Charges outside the surface will not contribute to flux. Electric field due to an infinitely long straight uniformly charged wire : ... By symmetry, the magnitude of the electric field will be the same at all points on the curved surface of the cylinder and directed radially outward. E and ds are along the same direction.