Question

For each of the electric field diagrams shown below, place charges that would produce the given field.

Answer 1

Concepts and reason

The main concepts used to solve the problem is properties of electric charge.

Initially, Analyses the electric lines of forces. Later, use the fact that the electric lines of forces goes outwards for a positive charge and inwards for a negative charge. Finally, place charges at the respective locations.

Fundamentals

The electric lines of force directed outwards for a positive charge.

The electric lines of force directed inwards for a negative charge.

1.a

Refer to the picture below:

Clearly the electric lines are coming inward. Hence the charge should be negative.

1.b

Refer to the picture below:

Clearly, In the left-hand side the electric lines of force are coming out and on the right the electric lines are coming out.

Hence, Both the charges are positive because the lines of force are coming outwards.

1.c

Refer to the picture below:

Clearly, In the left hand side the electric lines of force are going outwards and on the right hand side the electric lines of force are going inwards.

Hence, The charge on the left hand side is positive and on the right hand side the charge is negative.

Ans: Part 1.a

The correct charge placed is shown below: