Throughout this self guided unit, we have learned about electrostatics and circuits. Electrostatics dives into what we know today about charges on particles on things like protons and electrons and static electricity. We learned about elementary charge (e) and that most particles can only have a charge that is a multiple of the elementary charge. In addition to electrostatics, we also learned about circuits, including, batteries, wires, current, voltage, resistors and resistivity.
Coulomb's Law
Coulomb's law, is a law of physics that tells us the amount of force between two stationary, electrically charged particles. The electric force between charged bodies is normally called electrostatic force or Coulomb force. One Coulomb is equivalent to 6.24 *10^18
Electric Potential Energy
Electric potential energy is the amount of energy stored in a particle when it is moved by anther electrostatic force. The equation we use to calculate the potential electric potential energy is U= K(Q*q)/r^2 *d cosø which can be simplified to U=K(Q*q)/r
https://www.youtube.com/watch?v=elJUghWSVh4
Circuits
Circuits are what allow an electric charge or current (I) to move between different items within that circuit. There are different objects that can be used in a circuit. A battery or EMF is a normal power source for a circuit. It contains a positive and negative terminal that allow the conventional current and the electron current can flow between. The main item used to transport electric current between items would be wires, normally made out of copper insulated with a rubber material to protect people from wires. Resistors also play a major role in circuits as they can limit the flow of current that can pass through it. Lifestyle pictures are not east to read for scientists so they created what we call schematics to make circuits easier to read. Each item has a different symbol to represent it, an example is show below.
https://cdn.sparkfun.com/assets/d/2/9/c/c/51cdbd5fce395fc80b000000.png
Ohm's Law
Ohm's law is the most fundamental way to relate/connect the parts of an electric circuit which are voltage (V) current (I) and resistance (R). The equation between these three is quite simple, V=IR for voltage or I=V/R for current. This is the easiest way to figure out missing variables within a circuit and will help when trying to figure out problems relating to electric circuits.
https://www.youtube.com/watch?v=F_vLWkkOETI&t=1s
Kirchoff's Loop Rule and Kirchoff's Junction Rule
Kirchoff's Loop rule says that all of the voltages in a group are equal to zero. This can be really helpful in figuring out a missing voltage variable in a circuit problem
https://www.youtube.com/watch?v=Z2QDXjG2ynU
Here is my educational GIF related to electrostatics
https://media.giphy.com/media/hwyi9sFLP9Cxy/giphy.gif
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