# Question: Do electric field lines always have to be straight?

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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. … If the electric field in a given region of space is zero, electric field lines do not exist.

## Do field vectors have to be straight?

It does not. It merely represent an idea of magnitude. So it wouldn’t make any sense to draw a single vector as a curved line. Even when drawing vector fields it is understood that at any given point the vector has a particular magnitude.

## Can uniform electric field lines be curved?

This means that the overlapping curved field lines will average out as a straight field line, through the middle of the point-charge pairs. The outermost edges of the electric field, on the other hand, will have nothing to interfere with, and remain curved.

## Why electric field lines are curved at the edges?

Not force values, but what you multiply its charge by to get the force values. Keep in mind that electric field lines represent a vector field and not a path, at those points on the edge of the plates the combination of all the forces exerted by the plate make a curved shape.

## Can electric field lines cross?

Electric field lines cannot cross. … This is because they are, by definition, a line of constant potential. The equipotential at a given point in space can only have a single value. If lines for two different values of the potential were to cross, then they would no longer represent equipotential lines.

## Can vectors not be straight?

Vectors in the plane or in space are not lines; they are straight-line motions. You can add two motions to get a third, or scale a motion to get a larger or smaller motion in the same direction. But they do not have a start or an end point the way a line segment does.

## Do magnetic fields extend infinitely?

Summary: Researchers have mathematically shown that particles charged in a magnetic field can escape into infinity without ever stopping. One of the conditions is that the field is generated by current loops situated on the same plane.

## Where is the electric field the largest?

Electric field strength is greatest where the lines are closest together and weakest where lines are furthest apart.

## Why are electric field lines not closed curves?

If the electric field lines form a closed loop, these lines must originate and terminate on the same charge which is not possible because electric field lines always move from positive to negative. … Therefore, we say electrostatic field lines never form closed loops.

## Why can’t two field lines cross each other?

The tangents at a point on the line of force given the direction of electric field at that point. It two lines of force intersect each other at a point, then electric field at that point will have two directions. … As the same cannot be true, two lines of force will never intersect each other.

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## Under what condition the electric lines of force are curved?

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.

## What is the direction of electric lines of force?

The direction of a line of force is in the direction where a small free positive charge will move along the line. It always travels from positive charge to negative charge.

## Can electric field lines form closed loops?

Since electric field lines originate and terminate on charges of opposite polarity, electric field lines can never form closed loops as to form a closed loop, the electric field lines must originate and end at the same charge. 