Can electric field lines be straight?
In a uniform electric field, the field lines are straight, parallel and uniformly spaced
. The electric field lines, however, can never form closed loops, as lines can never start and end on the same charge.
Can electric field lines be straight in non uniform field?
The electric field can be represented by drawing what is called the lines of force.
They can be straight or curved
.
Under what conditions electric field lines are straight?
Answer: Electric lines of force are straight line
when there is single charge
. If two electric charges are placed near each othe, the electric lines of force in between them becomes curved slightly.
Are electric field lines curved?
An electric field line is, in general,
a curve drawn in such a way that the tangent to it at each point is in the direction of the net field at that point
.
Why are electric field lines bent?
When charged particles are close enough to exert force on each other, their electric fields interact. This is illustrated in the Figure below. The lines of force bend together
when particles with different charges attract each other
. The lines bend apart when particles with like charges repel each other.
What is the difference between uniform electric field and non uniform electric field?
If an electric field has the same magnitude and same direction everywhere in a given space then this electric field is uniform, and if either the magnitude or direction or both change then it is a non-uniform electric field in that specified space.
When electric field is non uniform?
Solution :
The electric field which has different magnitude and direction at different points in region
is called non-uniform electric field.
Can magnetic field lines be straight?
There can’t be such straight field lines between magnetic poles
as the magnetic field can always form closed loops. However the tangential vectors through each loops point in the same direction which is illustrated in the figure. Remember that the magnetic field is a pseudo-vector.
What are the three properties of electric field lines?
- The electric lines of force start from a positive charge and ends on a negative charge.
- The electric lines of force always enter or leave the charged surface normally.
- Electric lines of force can never intersect each other.
What are the 4 important properties of electric field lines?
- 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.
Are field lines continuous curves?
Yes, the electrostatic field line is a continuous curve
because a unit charge always experiences a continuous force when it is placed in an electrostatic field.
What shape is an electric field?
What is difference between electric field and electric field lines?
Electric field lines always point away from a positive charge and towards a negative point
. In fact, electric fields originate at a positive charge and terminate at a negative charge. Also, field lines never cross each other. If they do, it implies that there are two directions for the electric field at that point.
What are the rules for drawing electric field lines?
- Lines begin and end only at charges (beginning at + charges, ending at – charges) or at Infinity.
- Lines are closer together where the field is stronger.
- Larger charges have more field lines beginning or ending on them.
Why do electric field lines never cross?
At the intersection point, if electric field lines cross each other, then
there would be two directions of electric field which is not possible
, so lines of forces never cross each other.
Which of the following is not true about electric field lines?
Electric field lines
cannot be taken as continuous curve
.
Are electric field lines uniform?
An electric field is said to be uniform, when it has the same magnitude and direction in a given region of space
. The above diagram shows electric field lines generated by two point charges A and B.
Where is the electric field most uniform?
Illustration of the electric field between two parallel conductive plates of finite size (known as a parallel plate capacitor).
In the middle of the plates, far from any edges
, the electric field is very nearly uniform.
How do you know if an electric field is uniform?
If an electric field has the same magnitude and same direction everywhere in a given space
then the electric field is considered uniform. If the force exerted on the charge is the same no matter where the charge is located in the electric field, then we understand that the given electric field is uniform.
What is difference between uniform and non uniform magnetic field?
Uniform magnetic field is a magnetic field which experiences same magnetic forces in all directions. Non-uniform magnetic field is the magnetic field which experiences unequal forces from different directions.
What is non uniform electric field in physics?
Non uniform electric field is
the one in which the electric field vectors are more closely spaced near the source charge and they get far apart as the distance from the source charge increases
.
What causes Lenz’s law?
Definition. Lenz’s law states that:
The current induced in a circuit due to a change in a magnetic field
is directed to oppose the change in flux and to exert a mechanical force which opposes the motion.
How are the magnetic field lines at the point on the straight?
The magnetic field lines around a straight current-carrying conductor are
concentric circles whose centers lie on the conductor
. The direction of the magnetic field can be determined by the right-hand thumb rule.
Why do magnetic field lines never intersect?
The magnetic field lines never intersect each other because
if two or more lines intersect each other than it means that at that point of intersection, the magnetic field has two directions at the same point
. This is not possible for a magnetic field to point in more than one direction at the same point.
What are the two types of electric field lines?
An electric field is the force that fills the space around every electric charge or group of charges. There are two types of electric fields:
static (or electrostatic) fields and dynamic (or time-varying) fields
. Electric fields have a definite magnitude and specific direction.
Where are electric field lines strongest?
Where the field lines are
close together
the field is strongest; where the field lines are far apart the field is weakest. If the lines are uniformly-spaced and parallel, the field is uniform.
Why do electric field lines move from positive to negative?
A field line is defined as a line that is always tangent to the field, and is oriented by the field.
Since the electrostatic field is always directed away from positive charges and toward negative charges
, field lines must go away from positive charges and toward negative ones.
What direction do electric field lines travel?
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
.
Where are electric field lines discontinuous?
Do electric field lines attract each other?
They cannot intersect with each other.
Two electric lines of force travelling in the opposite direction attract each other
. Two electric lines of force travelling in the same direction repel each other. The lines of force are imaginary but the field it represents is real.
Is it possible for an electric field to exist in empty space explain?
Yes, according to Maxwell’s equations an electric field exists in empty space
.
Can the electric field be negative?
What are the main characteristics 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.
Can go theorem be applied to non uniform electric field?
Yes it is applicable to non uniform field
. Now in all of these diagrams, the charge q enclosed in the Gaussian Surface, is always as the center of it. Thus the electric field is uniform throughout the inside of this Gaussian Sphere.
What is difference between uniform and non uniform magnetic field?
Uniform magnetic field is a magnetic field which experiences same magnetic forces in all directions. Non-uniform magnetic field is the magnetic field which experiences unequal forces from different directions.
Are electric field lines uniform?
An electric field is said to be uniform, when it has the same magnitude and direction in a given region of space
. The above diagram shows electric field lines generated by two point charges A and B.
