Question

Define an 'electric field' ?

Answer 1

an electric field is such an area where a single quantised charge will experience a uniform force around it.

Answer 2

an electric field is created by a source charge and any other charge can experience it other than the source,it can vectorially represent by E.or graphically by lines of force,it can either be represented by volt V.

Answer 3

get it???

Answer 4

an electric field can be thought as a modifier of the property of space... causing charged particles to experience a force.

Answer 5

if u have one charge.. say Q

and u keep another charge lets say q.. near it.. u know that it ll xperience a force right?.. now the question is how does Q know where q is to put a force on it?.. how can we answer this?

we say.. that Q will always produce some sort of an effect around itself.. the q will come in contact with this influence.. and will experience a force... this effect.. this influence is called an electric field


for example.. imagine someone farts.. then people around get a smell.. the guy who farts have no clue who is where? now does he?.. all he does is create a fart field (much like how Q creates an electric field).. then any nose which comes in contact wih this fart field will experience a smell (stinky one maybe ).. (just like how any charge q which comes in contact with an electric field experiences a force)... hope u get it

Answer 6

Hi!

I bet you have enough to read already... but here's more! Just briefly.

Fields can give information about the magnitude of something at a point, and the field can cover any point..

The magnitude of an electric field at a point will tell you the magnitude of force that would be exerted on a given charge at that point. The math description of the electric field captures that: \(\overrightarrow E=\Large\frac{\overrightarrow F}{q}\), where \(\overrightarrow E\) is the electric field, and \(\overrightarrow F\) is the Force that would be exerted on the charge, which is \(q\).

For added information, the electrostatic force is given by:\[F=k\frac{q_1\ q_2}{r^2}\]Dividing this by the charge that's not generating the field leaves\[\frac{F}{q_2}=E=k\frac{q_1}{r^2}\]And \(q_1\) and \(q_2\) can be interchanged. The \(k\) is a constant, and \(r\) is the distance between the charges. So, for one charge, the field is \(k\Large\frac{q}{r^2}\). For many charges, it is the sum of the electric fields of each charge. That would require a coordinate system, and it could make for a more elaborate formula.

I hope this helps! If you have any questions, it looks like there are many knowledgeable people here to help.

Answer 7

Let us see, what is field? Consider a magnet. it has its own effect in a region surrounding it. The effect can be experienced by placing another magnet near the first magnet. Such an effect can be defined by a particular physical function. In the region surrounding the magnet, there exists a particular value for that physical function, at every point, describing the effect of magnet.
So Field can be defined as the region in which, at each point there exists a corresponding value of some physical function.
Let us study What is this Electric Field?
We know that there are generally two types of charges existing in nature:

1) Positive.
2) Negative.

Such an electric charge produces a field around it which is called an electric field.

Learn more about Electric Field at http://physics.tutorvista.com/electricity-and-magnetism/electric-field.html