Magnetic Fields II (Update)

This picture shows how to make an ordinary pin into a magnetic pin. Then we thought of ways of how to destroy a magnetized pin. 

REMEMBER... V "cross" B gives you the force of the field. If you do it the other way around you will get the opposite side of field.

F=IBL and Torque=Fd

This is what was needed for the previous picture

This was a lab exercise where we connected a power supply and made it spin, spin, spin. 

This was the components that we were to make what the previous picture. This was very hard to build and we never finished building it. 

Magnetic Fields (Update)

What happens when to a metal when it is moved around magnetic. The arrows indicate where the compose is directed.

We learn here that if we cut a magnetic in half we do not get one that has only a northern pole and the other have only a southern pole. They in fact became two identical magnets with both northern and southern poles.

This was a demonstration  about what would happen when we connect what we did to each other and put a magnet near it.

Here we looked at the force diagram of what is happening with the magnetic field, velocity,  and negative charges.

This is a continuation of the previous section. We see the final equations. The Force is a simple F=qBVsin(theta).

Here we combined work and force to make a new equation. We did this for an example of what is to become in the future.

Real Circuits(Update)

WE DID NOT DO THIS EXPERIMENT THIS YEAR.

YEAH!!! This the is the first circuit that we build in 4B. Though it was really easy and I could have done this in my sleep but it was fun. There will be more to come with this bread board.

Here we have the same configuration but this time we have a push button that connects the circuits together. I had my other group mates do this because I already know how to do this simple one.

This is a clear cut picture of what bread board looks after the push button was added.

Here is the a amplifier that we tried to make with the bread board. I would have had more pictures but i was connecting the wires and making sure that the connection was clean and connected.

This was just to nice not to take a picture of these wires. This is what all cable boxes should look like but we can only dream.

Charge & Discharge Capacitors (Update)

This is what it looks like when a capacitor is being discharge. I think this is the discharge graph.

This is when a charge is sent through a electric field. The Force=qE. We use the same velocity as a regular V=at=qVt/md=qVL/mdVx

This is the first time we are use this equipment in class and it would not be the last time we use it. We will learn that we can use this for many things. 

This year my oscilloscope did not work. We got to take it apart and see its guts.

Is it beautiful. In the previous picture you could see the pots that control the different resistance that causes settings to change.

We had to use the updated version of the Oscope. It made everything easier but not as fun. We did not have to do any problem solving.

Capacitors II (Update)

In both of these pictures we can see use a multi-meter to measure the capacitance of the two capacitors together and individual. We see that we capacitors in a series is not like resistors in a series. Below we see how capacitors act in series and parallel.

In a Parallel circuit capacitors are added up. In a series the inverse of the capacitors are added up and that is the series.

Here we have the first calculation with capacitors volts = q/v. This will be a concept that i will need to remember.

This is what we see happens to the charge and discharge. This is where we will find the time constant of t/RC.

I like this question but switch makes this difficult to remember what happens when things are connected.

This was our charge and discharge time graph for the two capacitors.

Capacitors(Update)

This is the type of equation that will be on the test. It is going to be on the test and i will get this problem right.

This is what is in a capacitor. It is very wet inside. The liquid in the capacitor is ment to increase the hold of the charge.

The standard unit of farad is C/V. This will be needed in later problems.

This is the first example of what the type of calculations we are going to need for the test. This is a simple calculation of what will happen.

Here is an longer version of the capacitor equation K=Cd/AEpsilon. I dought that this type of question will be on the test because it is too long in the end.

The field between the two plates is E field= V/d. V being the volts that the possitive side and d being the distance in the two plates.

Again the capacitance of a compasitor is Q/V. This will be needed to on the test.

We have to make sure that we no that C=Q/V. This is the basic equation for capacitors

Like resistors we can have similar questions such as these. There are different ways of drawing the schematics for a circuit such as below.

Resistors & Current (Update)

This is a tech set-up introduced us to parallel circuits with two batteries and two light bulb. we have a switch in between the batteries to see what would happen to the third light bulb when the switch is switched to on.

This is a different circuit that we had to determine. We have a switch in between the batteries to see what would happen to the third light bulb when the switch is switched to on. 

Here is the prediction of what would happen to the light bulbs when it is switched on. We were wrong. 

Here is a different circuit and we had to change the predict what would happen. I still do not get it because things are not what it seems.

In the end nothing happened. I thought the A would get brighter and B would stay the same.

This is the calculation that we had when we had circuits in series and parallel. We learned that a series circuit has the same current and the parallel has the same voltage.

This is the close up of the parallel circuit that we calculated. There is a little off of the mark because of the data lost in the things like proper connections, resistance in wires and other errors.

Here we learned how to determine the resistance of a standard resistor. This is a very important life lesson that i was glad to have. I will need to review this later on nevertheless.

This tells you how to calculate the resistance in a circuit. This will be used for the rest of the calculations when it comes to resistors.

This is the first calculation of what the total resistance of the resistors in the wire.

THIS WILL BE ON THE TEST!!!