Many molecular systems can be modeled as (approximate) electrical dipoles. The d

Question

Many molecular systems can be modeled as (approximate) electrical dipoles. The diagram below shows a dipole centered at the origin and along the x-axis. Point A is located at (r = 2.9L,0). (Note: The figure is not to scale!)

Given the above, for each statement below, if the statement is true, answer `T', if it is false, answer `F', and if the answer cannot be determined from the information provided, answer `C'. For example if `A' and `E' are true and there is not enough information to answer `C' and the rest are false, then answer `TFCFTF'.
Note: the symbols N, S, E, and W refer to compass directions. E, for example would be to the right on your page


A) The direction of the net electric field at the point (-r,0) is W
B) The magnitude of the net electric field at point A is less than the magnitude of the net electric field at the origin.
C) The direction of the net electric field at the origin is W
D) The direction of the net electric field at a point on the positive y-axis is NW
E) The direction of the net electric field at A is E
F) The direction of the net electric field at a point on the negative y-axis is W

Explanation / Answer

A)
The direction of the net electric field at the point (-r,0) is W = False
The Direction is towards East.

B)
The magnitude of the net electric field at point A is less than the magnitude of the net electric field at the origin = True.
At Origin Two Electric Field would Sum up , while at Point A it would Subtract.

C)
The direction of the net electric field at the origin is W = True

D)
The direction of the net electric field at a point on the positive y-axis is NW = False

E)
The direction of the net electric field at A is E = True.

F)
The direction of the net electric field at a point on the negative y-axis is W = True.

Answer - FTTFTT

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