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What are electric field lines Class 12?
Electric field lines are a pictorial way of representing electric field around a configuration of charges. An electric field line is a curve drawn in such a way that the tangent to it at each point is in direction of the net field at that point.
What is electric field lines and explain its properties?
Properties of an Electric Field Field lines never intersect each other. They are perpendicular to the surface charge. The field is strong when the lines are close together, and it is weak when the field lines move apart from each other. The number of field lines is directly proportional to the magnitude of the charge.
What are electric field lines of force?
The electric lines of force that represent the field of a positive electric charge in space consist of a family of straight lines radiating uniformly in all directions from the charge where they originate. A second positive charge placed in the field would travel radially away from the first charge.
What is electric field lines short answer?
An electric field line is an imaginary line or curve drawn through a region of empty space so that its tangent at any point is in the direction of the electric field vector at that point. The relative closeness of the lines at some place gives an idea about the intensity of electric field at that point.
What is electric field with diagram?
These pattern of lines, sometimes referred to as electric field lines, point in the direction that a positive test charge would accelerate if placed upon the line. As such, the lines are directed away from positively charged source charges and toward negatively charged source charges.
What is electric field intensity?
What is Electric Field Intensity? The electric field intensity at a point is the force experienced by a unit positive charge placed at that point. Electric Field Intensity is a vector quantity. It is denoted by ‘E’. Formula: Electric Field = F/q.
Can an electric field be zero?
There is no zero-field point for a pair of equal-magnitude-but-opposite-sign charges. Electric field is zero in that point because the sum of electric field vectors have same intensity and direction, but are opposite. That point is halfway between two like charges.
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How are electric field lines used in math?
When do electric field lines do not exist?
These field lines always flow from higher potential to lower potential. If the electric field in a given region of space is zero, electric field lines do not exist. The tangent to a line at any point gives the direction of the electric field at the point.
Why are electric field lines stronger at point a?
In other words, if you see more electric field lines in the vicinity of point A as compared to point B, then the electric field is stronger at point A. The field lines never intersect each other. The field lines are perpendicular to the surface of the charge.
What are the properties of an electric field?
Properties of Electric Field Lines. In an uniform electric field, the field lines are straight, parallel and uniformly spaced. The electric field lines can never form closed loops, as line can never start and end on the same charge. These field lines always flow from higher potential to lower potential.