Day 23 ->Energy in wires monitor example, Inductance: ActivPhysics, Oscilloscope, solonoid, magnetic field interference, laboratory questions

Energy in wires monitor example

Back of monitor is leg there is a choke

Inductance equations derived and constants used along with it.

Energy I capacitor is i/2 cv'2 is similar to inductor
1/2 Li'2
P=VI
integration of derived energy as shown here derived and shown as LI^2=U which is similar to kinetic energy.

Energy is store every is turned on and it will be changing with change of time

Rc circuit Simulation picture circuit calculating the current

Current is 2 amps answer from V/ohm=>  V=IR I=V/R

Faraday's law of induction. the reason for Faraday's

Website answer Active Physics questions

A fist test square wave and measuring decay of inductor with 150 ohm resistor
Testing wave

Measuring human wave frequency
5 ms per division 3 peaks on screen 10 across 1/18*10'-3 60 hz. Basically picking the ac current

Measure inductor voltage inductor voltage
Setup of the good function generator showing the Vmax and used to find Imax and frequency from the Scilloscope.

Cursor pulse width and cursor pulse rate 8
5.4 ms divide for the value of tau.

These pictures are showing Inductors with time changing current

White board representation of inductor graph from previous Oscilloscope result.

Lastly, a circuit was built containing hooked up to a function generator, a resistor, and an inductor. In addition, a voltmeter was used in order to find the voltage across the resistor and inductor. The equations of uncertainty and answers are shown below for the measurements of inductance

Day22 ->Currents in wire, Magnetic Sensor setup and Faraday's law experiment,Tesla's Wardenclyffe tower, Inductor differentiation, Phenomenon #2: experiment with tubes of conductive and nonconductive material when magnet is dropped inside

55 number of coil per unit length

Currents in wire. Force

If direction is reversed they repel each other  from the force vector

Force coulomb derived for ampere

Magnetic field Faraday s law experiment
Through hall effect sensor.
Hall effect sensor 

Sensor vertical then rotate it in the vertical Line
Measure magnetic field of 1. 5. 10. 20. loops of wire test tube with 3 volts.
Magnetic field
Make magnetic field bigger then you can overlapping them. Magnetic field due to solenoid
Imagine loop of wire thumb give direction  magnetic field of. Show

Area vector be cos theta

Result of Faraday's 10 year frustrating experiment comes jerking iron rod for the awesome discovery of electromagnetism pertaining to this experiment is the induction.  

Faraday question magnetic. Question Electricity from magnetism. Prof Mason showed class the analog galvanometer with which follows the formula below and shows that faster the iron core moves,the more the galvanometer can detect more current.

Thus introduced the rolls of wire in the inductor.
Changing magnetic field is called induction.

Figure out 4 different things about experiment produce maximum current from inductor coil
  Increased current to strengthen of magnetic field. 
  Faster speed means larger current
  Increase coils of wires
  Overlay coils of wires
  Decrease size of loop

Diagram for galvanometer

For example when showing a bigger loop, and unsurprisingly the less amperage with ammeter was detected when iron rod jerked in and out inside the bigger loop. 

Unit analysis of Tesla
Break unit B(magnetic flux) to fundamental units
Tesla is N/m/A

Variec 120ac to lower power to levitation coil b/c current flowing to show and adjust how high the metal ring can levitate

Mag coil up that magnetic field create current in ring creates a magnetic field going down

Split ring show nothing

Laminated ring up so much(due to reduced eddy current, with more efficiency)

Magnetic field Induced current light bulb show (light up with higher inductance)

Pickup coil or driving coil

Tesla's Wardenclyffe tower

The tower (400kilohertz and the higher it gets, more efficient it isequation below), very similar to inductor and modern inductive charging except the troubles are that it uses Earth as conductor(unknown electrostatic changes globally(environmental issues)) and problem how to charge people with electricity fees.

Tesla's Wardenclyffe tower

First thought the ring and coil interaction from induced current and current repelling each other.

Motional Emf explained

Overall E=vB
vBL=motion emf
Approach 180 degree opposite degrees

Useful equations derived for application of magnetic flux.

Magnetic field from angle as a function of x

Inductor differentiation
Below are a list of inductor to the right more inductance.

Formula for inductance

Phenomenon #2: experiment with tubes of conductive and nonconductive material when magnet is dropped inside

Pic of solenoid depiction

Representation of the electric field vector of a wave of circularly polarized electromagnetic solenoid presentation during radiation which is similar to this experiment except with wires.

Calculation and presentation of how the magnet inside tube would fall.
Drop through both tube it will be slower in aluminum and normal speed in acrylic

Day 21 ->Motor Kit, Demonstration setup for magnetic field's effect on wire, Forces on a wire line of charge

Visuals of electric motor with essential parts: battery, contact, split ring conmutator, coil winding wires.

Electric motor setup for stator and commutator.

Motor Kit

The two above shows how stable input device is by VI= power

Principle of magnetic gear to reduce frictional inefficiency.

Demonstration setup for magnetic field's effect on compass

All the compass point in the direction of N to S

 Professor Mason uses rod of current to effect the several compasses he placed around it.  In the video below, the arrows of the compasses make a circular path around it, thus mapping magnetic field from electric field. When the direction of the current is switched, the arrows change directions as well. The right hand rule is used to determine direction.  Demo proves the statement above, that a line of current heavily supports circular magnetic field. 

Forces on a wire line of charge

Demo of the wires with 1, 2, 3, 4

 Three spots predicted by RHR. At the top, no magnetic field because the two currents are canceling out from up and down current. When asked the wire on the right edge, there are two currents going in the same direction and it enhances magnetic field. When you go to the area in the middle, there is a magnetic field going through the center of coil.

Conclusion, line creates circular magnetic field, while circle creates line magnetic field.

Makercon robo warfare Extra Credit

Making Robot had to be choosy about materials.
Links to preparation websites
https://docs.google.com/spreadsheets/d/1ky2--Y4oVTw87LQaNNeu7gmT0argly-KsRy6mn0_p4s/edit#gid=885137437

https://docs.google.com/document/d/1M44X44qghcJ7FYKjsgqfGKTNMyKF8SclQPRqmaA96Aw/edit

Day20 ->Bar magnets, Magnetized pins experiment , Units learned and review, Experimental Excel data sheets with error analysis, presentation of application of various magnets

He is a bar magnet example 

He is acting as the "bar" "magnet"

Drawing field lines 

Prediction of iron filling and distribution of magnetic field lines.

Actual iron filament interact electrically with electric field lines of magnetic force. 

Magnetized pins experiment 

Even after two cuts in half there the smaller is still magnetized although it seems not that strong in the beginning due to the magnetic field lines.

Units learned and review

Units: SI: T = Tesla = N/(A . m)

G = Gauss = 0.1 mT

Magnetic 

Velocity of electron: V(m/s), F(m/s2(N))

V cross B vectors =F vector

Units of constant k calculations?

B: tesla

F: units of F 

A: amp(C/s)

C/s*

kV

k units : charge!

T=N/(A*m)

F=qE

Rules of right hand rule, positive charge for right hand and negative for inverse of right hand force vector or the left hand rule. Usually question states negative charge.

The force is enacted by the right hand rule. in which x symbolizes the arrow point away from page while dot present arrow point out from the page.

Experimental Excel data sheets with error analysis

Experiment called for cutting the semi circle into 15 parts.

Collection of excel spreadsheet through calculation of 15 different segments.

In this part of lab, the total force on a wire was found by estimation from using a excel spreadsheet. The semicircular wire was calculated of its net force by having 15 segments. θ, sinθ , and F were found for each segment and summed up (refer to the excel picture above). The force can be observed that a maximum at 90 degrees and a minimum on the sides. The equation is net force=BIsin(theta)dl.

Error analysis: The error from this part of the experiment is that there is no error in the calculation, however when propagation method was used in board and applied in maple, the variables in here will not have error inherently but rather from experimental, thus this calculated value is truly an estimate of the broad range of possible error.

Deflection of photon beam by the use of magnetic field B. Similar to a current deflected, which the beam is acting as particle.

Demo of student built horn antenna from taking cover of microwave outer parts off to broadcast 2k watts signals.

North pole is in the front so the wire going from left to right is exerted by a force downward.

Horshoe magnet deflection demonstration. And this one's north pole is in the back has has the wire deflected force upward.

Lorenz Force(French) 

vector F=q vecV cross vecB

describes force on a moving charge

Test