Electromagnetism for Engineers

Use Matlab to e

valuate the effect of electric dipole charge Q and distance

d on the electric field intensity and potential.

Use Matlab t

o plot the electric field and equipotential lines due to:

Two point charges Q and

–

3Q located

at (x, y) = (

–

2, 0) and (1, 0)

respectively

Four point charges Q,

–

Q, Q,

–

Q located at (x, y) = (

–

1), (1,

–

1), (1,

1), (

–

1, 1)

For simplicity, assume

for

the second objective

that Q = 4

Ï€Îµ

and

–

10 < x,

y < 10

Theory

Electric dipole is two point cha

rges of equal magnitude and opposite polarity

separated by a very small distance compared to the distance where the field is

calculated