Question

Give examples and describe electric charge and electric field.

Answer 1

Electric charge has a standard definition. Electric charge is the physical property of matter that causes it to experience a force when placed in an electromagnetic field. There are two types of electric charges: positive and negative.

When two positive charges are placed in space, they will repel each other. When a positive and a negative charge are placed in space, they will attract each other.

Now, coming to electric field, it is an imaginary field created by the electric charges placed in space. When we place an electric charge, it sets up an electric field whose magnitude decreases as we go away from the charge. We usually denote this by electric field lines. For positive charge, electric field lines are directed away and for negative charge, field lines are directed towards the charge.

Here are some examples of electric field set up: