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The work done per unit charge moved between two points in an electric field?
Wiki User
∙ 11y ago
This question requires the rearranging of several formulas in order to find the equations (there are two of them) to calculate the work needed to move a charge into the direction of an electric field.
Symbols used in the following formulas.
d = distance in meters (m).
V = potential difference in volts (V).
W = work in joules (J).
q = charge in coulombs (C)
E = electric field in Newtons per coulomb (N/C)
Composing the formula
Step one) E = V ÷ d
Step two) We know that w = qv, which we can then solve to produce
V = w ÷ q
Step three) If we then input the second formula into the first, we can get a formula to calculate the work needed to move a charge into the direction of an electric field,
i.e.
E = V ÷ d
= E = (w ÷ q) ÷ d
which simplifies to become
E = w ÷ qd
Step Four We can then solve this new formula to produce our desired formula which will be,
w = qdEWiki User
∙ 14y ago
Wiki User
∙ 15y ago"http://wiki.answers.com/Q/Measures_the_amount_of_work_done_as_electrons_move_between_two_points
Wiki User
∙ 10y agoThe current in amps is the measure of amount of electron flow.
Wiki User
∙ 11y agoElectric potential difference.
Wiki User
∙ 13y agoAn ammeter (short for "amp-meter")
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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.
In an electric field 0.90 J of work is required to bring 0.45 C of charge from point A to point B. What is the electric potential difference between points A and B?
nn
Which of the following is true about the electric field around an electric charge?
The electric field around an electric charge varies inversely as the square of the distance to the charge.
Gets stronger as you get closer to an electric charge?
The electric field gets stronger as you get closer to an electric charge.
Is electric field scalar or vector?
The strength of the electric field is a scalar quantity. But it's the magnitude of thecomplete electric field vector.At any point in space, the electric field vector is the strength of the force, and thedirection in which it points, that would be felt by a tiny positive charge located there.
What is the relation between energy and charge?
The relationship between energy and charge is potential difference or voltage. Where a volt is defined as existing between two points in an electric field when one joule of energy is required to move a charge of one coulomb between the two points.
The electric field of a point charge always points away from the charge?
If the given point charge is of positive one then the field points away from the charge. This is because we define the field at a point as the FORCE acting on unit POSITIVE charge. Like charges have to repel and hence the direction. If, other wise, the point charge is negative then electric field due to this negative charge would be towards the negative and not away from it.
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.
In an electric field 0.90 J of work is required to bring 0.45 C of charge from point A to point B. What is the electric potential difference between points A and B?
nn
If the electric field due to the excess charge on the Earth points downward what type of charge does the Earth carry?
negative
What is the relationship between an electric force and an electric field?
An electric force is the force on an electric charge or an electrically charged object when immersed in an electric field.
A negatively charged object is placed within a positive electric field. what happens to the object?
Electric Field between positive and negative charges. If the Electric Field in which both the positive and negative charges are present is stronger than the Electric Field between the two charges we are talking about, the the negative charge will move away from the positive charge in that positive direction of the field. If not, then the negative charge will get attracted to the positive charge and stay at the position of the positive charge. It will be pulled toward the source of the electric field. (Novanet)
Is current is the rate which work is done?
no. in simple words work done between two points in a circuit is potential difference across two points. The voltage between two ends of a path is the total energy required to move a small electric charge along that path, divided by the magnitude of the charge. Mathematically this is expressed as the line integral of the electric field and the time rate of change of magnetic field along that path. In the general case, both a static (unchanging) electric field and a dynamic (time-varying) electromagnetic field must be included in determining the voltage between two points.
Which of the following is true about the electric field around an electric charge?
The electric field around an electric charge varies inversely as the square of the distance to the charge.
Gets stronger as you get closer to an electric charge?
The electric field gets stronger as you get closer to an electric charge.
Is electric field scalar or vector?
The strength of the electric field is a scalar quantity. But it's the magnitude of thecomplete electric field vector.At any point in space, the electric field vector is the strength of the force, and thedirection in which it points, that would be felt by a tiny positive charge located there.
What is a strong electric field?
THE MAGNITUDE OF ELECTRIC FIELD IS kq/radius-square . IF THE Q[THAT IS CHARGE ] IS BIGGER IN MAGNITUDE OR IF THE DISTANCE BETWEEN THE CHARGE PARTICLE AND POINT CHARGE IS MINIMUM THAN WE CAN SAY THAT IT IS A STRONG ELECTRIC FIELD
