An electric dipole is formed from ±1.00nC charges spaced 4.00 mm apart.

Question

 The dipole is at the origin, oriented along the x-axis. What is the electric field strength at the point

( x, y ) = ( 14.0 cmcm , 0 cm )

Express your answer with the appropriate units.

( x, y ) = ( 0 cm, 14.0)

cm

Express your answer with the appropriate units.

Answer 1

Step 1:

The electric charge is .

The charges are apart with a distance .

The dipole is at the origin and oriented along the -axis, and so the point along the axis of dipole.

The electric field is .

Here .

.

The electric field strength at is .

Step 2:

The dipole is at the origin and oriented along the -axis, and so the point is perpendicular to to the dipole.

The electric field is .

.

The electric field strength at is .

Solution:

The electric field strength at is .

The electric field strength at is .