The first equation is the one you should be using. Can you explain what the symbols e, f and q stand for and what their numerical values are if given or known?jmemo said:e=f/q or E=kq/r^2
Where did you see this written down?jmemo said:... f coulomb force 8.99e9
The direction of an electric field is determined by the direction of the force that a positive test charge would experience if placed in the field. The field lines always point away from positive charges and towards negative charges.
The magnitude of an electric field is a measure of the strength of the field at a particular point, and is represented by the force per unit charge. It is calculated using the equation E = F/q, where E is the electric field, F is the force, and q is the test charge.
Field lines are used to visually represent the direction of an electric field. The direction of the field at any point is tangent to the field line at that point. Field lines also show the relative strength of the electric field, with closer lines indicating a stronger field.
Yes, the direction of an electric field can change depending on the location and orientation of the charges that create the field. The direction of the field is always determined by the direction of the force on a positive test charge, so if the location or orientation of the charges changes, the direction of the field will also change.
The magnitude of an electric field decreases as distance from the source increases. This is because the electric field is spread out over a larger area, resulting in a weaker field. The relationship between the magnitude of the field and the distance is inversely proportional, meaning that as the distance increases, the magnitude decreases by the same factor.