Lab 9: Electrical Field

Today we started the day by talking about the similarities about gravitational force and electric force.

With these similarities we were able to determine the second law of electrical field. F = qE.

 We also talked about positive and negative charges, if the charge is positive then it acts on the direction of the electric field, meaning that the electric field moves away from the positive point charge. If the point charge is negative then the electric field moves in the direction of the charge.

 Here, we defined step by step, how will we represent an electric field of a single charged particle into VPython.

 This is the code we used to fix the arrows direction. Before all the arrows point to the positive x direction.

 This was our visual prediction of the sample code provided by Professor Mason.

Professor Mason introduced to us the Superposition Principle which says that the electric field is just the sum of all the electric fields. We did an example using this principle.

 Professor Mason added another point charge, and these are the calculations for that point charge.

 Then we worked in an exercise that consisted on dividing a uniformly charged rod into 10 pieces, and see what would the result be in each piece due to a point charge.

An example that consisted on deriving the electric field using changes in length.

We used excel to calculate the total electric field of all 10 pieces.