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How does the strength of the electric field vary with the distance for the positive point charge?
Wiki User
∙ 6y ago
It is known as Coulomb's law and is the equivalent in electrostatics of the Newton's law for gravity. This is a law falling in the "inverse square" category, meaning there is a relationship of the form 1 / (square n). When the distance is multiplied by n, the field is divided by square n, e.g. if the distance double, the field is divided by 4.
The exact formulation of Coulomb's law is:
E = 1 / (4 pi . epsilon0) . q / r2
E being the magnitude of the field, which is what you want to know. Unit is V/m.
epsillon0 being the electric constant (vacuum permittivity). Unit is C/V/m
q being the charge of the particle creating the field. Unit is Coulomb.
r being the distance from the charge. Unit is m.
The "inverse square" factor is q / r2
Coulomb's law is a special case of Gauss's law which is turn is included in the Maxwell's set of equations. It turns out that, in magnetism there are only two guys in charge... Maxwell and Lorentz. Kind of monopoly.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoThe electric force weakens with increasing distance
Wiki User
∙ 12y agoAccording to inverse square law, square of the distance is responsible.
Wiki User
∙ 9y agoThe force is proportional to the inverse of the distance squared (for point charges).
Wiki User
∙ 6y agoStrength of electric field is inversely proportional to the square of the distance right from the positive charge
Wiki User
∙ 14y agoThe electric force decrease, F=e^2zc/4pi r^2. As r increases the force decreases by the square.
Wiki User
∙ 10y agoIt must be weaker. Otherwise I would feel this strange pull
whenever somebody rubbed a balloon with wool on Jupiter.
Wiki User
∙ 10y agoit decreases
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What will happened to the strength of electric field inside a shell of charge?
If the charge is uniformly distributed over the shell, then the electric field is zero everywhere inside.
How do we measure electrical current and electrical charge?
The definition of Electric Current in my books when I was learning is - the time rate of flow of electric charge, in the direction that a positive moving charge would take and having magnitude equal to the quantity of charge per unit time. The definition of Electric Charge is - one of the basic properties of particles of matter enabling all electric and magnetic forces interactions, there are 2 kinds of charge Positive and Negative.Electric charge is measured by coulombs (coulomb is 1 ampere per second) and electric current is measured by amperes. If trying to measure use a ammeter.
What is meant by electric field intencity?
An electric field can be represented diagrammatically as a set of lines with arrows on, called electric field-lines, which fill space. Electric field-lines are drawn according to the following rules: The direction of the electric field is everywhere tangent to the field-lines, in the sense of the arrows on the lines. The magnitude of the field is proportional to the number of field-lines per unit area passing through a small surface normal to the lines. Thus, field-lines determine the magnitude, as well as the direction, of the electric field. In particular, the field is strong at points where the field-lines are closely spaced, and weak at points where they are far apart. Electric Field intensity It was stated that the electric field concept arose in an effort to explain action-at-a-distance forces. All charged objects create an electric field which extends outward into the space which surrounds it. The charge alters that space, causing any other charged object that enters the space to be affected by this field. The strength of the electric field is dependent upon how charged the object creating the field is and upon the distance of separation from the charged object. In this section of Lesson 4, we will investigate electric field from a numerical viewpoint - the electric field strength. An electric field can be represented diagrammatically as a set of lines with arrows on, called electric field-lines, which fill space. Electric field-lines are drawn according to the following rules: The direction of the electric field is everywhere tangent to the field-lines, in the sense of the arrows on the lines. The magnitude of the field is proportional to the number of field-lines per unit area passing through a small surface normal to the lines. Thus, field-lines determine the magnitude, as well as the direction, of the electric field. In particular, the field is strong at points where the field-lines are closely spaced, and weak at points where they are far apart. Electric Field intensity It was stated that the electric field concept arose in an effort to explain action-at-a-distance forces. All charged objects create an electric field which extends outward into the space which surrounds it. The charge alters that space, causing any other charged object that enters the space to be affected by this field. The strength of the electric field is dependent upon how charged the object creating the field is and upon the distance of separation from the charged object. In this section of Lesson 4, we will investigate electric field from a numerical viewpoint - the electric field strength.
Is electric field dependent of magnitude of charge?
Electric field is dependent on the magnitude of the electric charge, E = qzc/r2
How do you calculate Electric field due to an isolated point charge point charge?
yes it can We have Epsilon equals charge by area imagine a photographic enlargement of the charge inside which this point charge exists then you can calculate B(Mag. Field intensity) We have E=Int.(B.dA) Was ur doubt clarified?
Circle the letters of the factors that the strength of an electric field depends on.?
The strength of an electric field depends on the charge that causes it, and on the distance from the charge.
What happens to the electric force when two objects are separated by 1 meter and each has a positive charge when the distance between the objects is doubled?
The electric force will be quarter of its strength.
Electric field is positive or negative?
Did you mean "The strength of electric field is positive or negative"? Anyway, there is your answer.. The strength of an electric field E at any point is defined as the electric force F exerted per unit positive electric charge q at that point, or E = F/q.You can say that it is positive.
The strength of an electric field depends on the?
Electric field strength depends on direction and magnitude because it is a vector quantity.
The strength of an electric field depends on the what?
The amount of charge that produces the field and on the distance from the charge. (Novanet)
What happens to the electric field when you get farther from an electric charge?
An electric field gets stronger the closer you get to a charge exerting that field. Distance and field strength are inversely proportional. When distance is increased, field strength decreases. The opposite is true as well. Additionally, field strength varies as the inverse square of the distance between the charge and the observer. Double the distance and you will find that there is 1/22 or 1/4th the electric field strength as there was at the start of your experiment.
What is the direction of electric field?
This question is impossible to answer because the force is dependant on the strength of the electric field. This will depend on how many other charges there are and how far away. The strength of an electric field is proportional to the number of charges and the inverse square of the distance. Strength of field = C x N / D2 where C is some constant, N is the number of charges (-ve will repel +ve will attract for and electron) and D is the distance between the electron and the charges creating the field.
What is the electric force on two posttives separated by a distance of .5mm?
Not enough information. You not only need to know the distance, but also the electric charge - not just that it is "positive", but the exact amount of charge.
What is cobalt's strength of electrostatic force?
The strength of the electrostatic force depends on the electric charge. If you have a block of cobalt - or of just about any other material for that matter - you can put a positive charge, a negative charge, or no charge on it; and the charge can be large or small.
Name two factors that affect the strength of electric force and explain how they affect electric force?
I'm not sure what this question really means - should it be more like "what two things affect the force between two electric charges?" If this is correct then the answer is probably: 1. The amount of charges. 2. The distance between the charges.
What has positive electrical charge?
A proton has a positive electric charge.
What are the kinds of electric charge?
The kinds of electric charge are positive charge and negative charge
