What are the magnitude and direction of the electric field at a point midway between ...?

Question

a -7.0 µC and a +6.0 µC charge 5.0 cm apart? Assume no other charges are nearby.

The choices for the direction answer are:
a.) toward the positive charge
b.) perpendicular to the line between the charges
c.) toward the negative charge
d.) none of these

Please help. Thanks.

Answer 1

electric field strength at a point = kq/r
k=Coulomb's constant
q=magnitude of charge
r=distance
Since k is constant and r is the same for both charges, -7.0 µC would be the stronger charge and produce a stronger electric field strength. The answer is c

Answer 2

You are using a font that I am not familiar with. And secondly how do you configure your key board to enable special fonts?
The only thing that I can relate too is the negative and positive to which you gave two values [-7.0 uC] & [6.0 uC] .
I may touch upon an arguement, so let us call this a logic game regardless of unknow educational backgrounds and or assumed qualifications.
Each particale of matter has unto itself a magnetic field.
Each particale is a domain that is separate as any individule.
Each domain is of three inities, Neg. & Pos.
The power of & is the Helix.
These are Laws of Physics.
A Negative value such as -7 may be of significance but the positive would be equal as per say +7 for the same particle. The electric field will flow from negative to positive. ie. Picture the Earth for this example: Energy flows from the North Pole in a ribbon.(I can see right now this is going to take some time). You need to know how the ribbon works. The ribbon moves South and at the point in time it enters the domain of the South. We call the point the Tropic of Cancer. We begin the helix. In passing the Equator we enter the null and out of the null we continue the twist to the Tropic of Capicorn. The wave retains the identity of the North while at the same time in the domain of the South. This is why the prevailing winds North of the Equator move from the West and below the Equator the winds prevaile from East to West. Weather is NOT a factor of Thermodynamics; but rather Magnetism. {supurerfolus} To simplify this more...cut a ribbon of paper 8" long bye 1/2" bye .003 thick. Mark one side on the long side with N and at the other S. Loop the ribbon and note that the circle of the ribbon mates with the NS. The contridiction lies within the fact that the north passes into the south at the hypathetical equator and is no longer North. This Identity crises is solved by laying flat the ribbon and marking the opposing North with a South at one end and the South with a North. The paper is three dimensional having a thickness of .003 of an inch. All magnets must have a negative and a positive no matter if it is ten feet long or .00000003 inches thick. Now reform the circle (loop) with the helix and the identity of the North and the South remains within the domain.
Your question of midway with unequal values is GRAVITY. Do you want to know how Gravity works?.
The Electrical field is a magnetic wave (ribbon)
Spell ckeck not working
If you care to extend the discussion E-mail me at [e-mail]

Answer 3

The direction of the electric field is always directed in the direction that a positive test charge would be pushed.

A positive test charge, midway between the two charges, would be attracted to the negative charge, and repelled from the positive charge.

We also have to assume that the charges at not moving.