What is the magnitude of the electric field at a point midway between a −5.6μc and a +5.8μc charge 9.0cm apart? assume no other charges are nearby. express your answer using two significant figures.

Magnitude of electric field at mid way is

Solution:

As per the question:

Q =

Q' =

Separation distance, d = 9.0 cm = 0.09 m

The distance between charges at mid-way, O is

Now, the electric at point O due to charge Q is:

Here, negative sign is indicative of the direction of electric field which is towards the point O

Now, the electric at point O due to charge Q' is:

Refer to Fig 1.

Since, both the fields are in the same direction:

answer: good job it's all correct !

explanation: