Question

electric feild intensity​

Answer 1

$\Large{\underline{\underline{\bf{Solution :}}}}$

The electric field intensity at a point in an electric field is the force experienced by a unit positive charge placed at that point, it is being assumed that the unit charge does not affect the field.

Thus, if a positive test charge q0 experiences a force $\sf{ \vec {F}}$ at a point in an electric field, then the electric field intensity $\sf{ \vec{E}}$ at that point is given by :

$\sf{ \vec{E} = \frac{\vec{F}}{q0}}$

★ Important points regarding electric Intensity :

• It is a vector quantity.

• The direction of the electric field intensity at a point inside the electric field is the direction in which the electric field exerts force on a (unit) positive charge.