Adipole with a positive charge of 2.0 uc and a negative charge of -2 uc is centered at the origin and oriented along the x axis with the positive charge located to the right of the origin. the charge separation is 0.0010 m. find the electric field due to this dipole at the point x = 4.0 m, y = 0.0 m.

(a) 0.56 i n/c
(b) -.56 i n/c
(c) 0.28 i n/c
(d) -0.28 i n/c

The reulting electric field at x = 4.0 and y = 0.0 from the dipole is 0.5612 N/C

Solution:

As per the question:

Charges of the dipole, q =

Separation distance between the charges, d = 0.0010 m

Separation distance between the center and the charge, d' =

x = 4.0 m

y = 0.0 m

Now,

The electric field due to the positive charge on the right of the origin:

E =

where

k = Coulomb's constant =

Now,

E =

Similarly, electric field due to the negative charge:

E' =

E' =

Thus

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.