Electrostatic Induction And Electrostatic Field

Electrostatic Induction or Electrostatic Influence is the redistribution of the electric charge in an object caused by its nearby objects. In other ways, electrostatic induction is the redistribution of electric charge from one object to another.

In 1753, British scientist John Canton discovered Electrostatic Induction. Later in 1762 a Swedish professor Johan Carl Wilcke improved it even better.

How Electrostatic Induction Works?

An uncharged matter will always have equal amounts of negative and positive electric charges evenly distributed to every part so that no part of it has a net electric charge. Take normal balloons or a normal comb, for example. But as soon as you rub a balloon or a comb on an electrically charged object, they will share or redistribute charge from the charged object to the uncharged object. And soon after rubbing a balloon or a comb, you will notice that now small pieces of paper or dust are attractive to those because of their electric charge.

Electrostatic Induction

The electrostatic field inside a conductive object is zero

Let’s take an example of how the electrostatic field inside a conductive object could be zero. Below is a visual image of an electrostatic field that shows us all that we need to understand about it.

The electrostatic field

The lines with arrows are representing the electrostatic field. In the blue color are the negative charges and in the red are the positive charges. This movement of positive (red) and negative (blue) is caused by force from the electrostatic field. (That is shown as lines with arrows). By this, we know that the separation of negative and positive charges in the matter is because of the electrostatic field. This electrostatic field creates an opposing electric field that exactly cancels the field of the external charge throughout the interior of the object. So we can say, the electrostatic field inside a conductive object is zero.

Learn About The Law of Refraction or Snell’s Law

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