Question

Class 12 Physics Electrostatics
What are electric field lines ? Mention its properties.
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Answer 1

Answer:

Definition: The region around the electric charge in which the stress or electric force act is called an electric field or electrostatic field. If the magnitude of charge is large, then it may create a huge stress around the region. The electric field is represented by the symbol E. The SI unit of the electric field is newton per coulomb which is equal to volts per meter.

Explanation:

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.

The electric field line starts from the positive charge and ends from negative charge.

If the charge is single, then they start or end at infinity.

The line curves are continuous in a charge-free region.

When the electric and magnetic field combines, they form the electromagnetic field.