Lab Report Day 16 - Capacitors

1. Capacitors

Professor Mason is showing us what is inside the battery. It is just two different sheet of metals.

Here are two capacitors.

This is a small capacitor

The derivation of equations and units.

The derivation of equations

Blowing Up a Capacitor

2. Permeability of Paper

The set up of the experiment. We should try not to let the two Al sheet touching each other.

In this lab, we use aluminum sheet to find the permeability of paper. We connect a multimeter to the pieces of aluminum sheets separated by several numbers of sheets of paper. We measure and record the capacitance. We can find the area of the cross area by finding the dimensions of the sheets of aluminum, We can take several pages of paper, measure its thickness and divided by its pages to measure the thickness of one page. With the area, distance of paper, and capacitance, the K value can be found. We see that as the distance between the sheets of foil increases, the capacitance decreases and  K value decreases.

Summary:

In today’s class, we learn how capacitor works and different kinds of capacitors. We learn how to find the permeability of paper also.