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What is this image about?
What do you know about magnets?
Units of measurement
How are thumbs also used for measuring other things?
Mention 2 things that can be measured with a part of your body.
https://www.brightstorm.com/science/physics/magnetism/amperes-law/
Number of passing electrons per second.
AMPERES
A
B/ T
ELECTRICITY
The field intensity generating one newton. Magnetic Flux Density.
TESLAS
MAGNETISM
N
Magnetic flux density (B): force acting per unit current per unit length on a wire placed at right angles to the magnetic field.
Electric Current (I): the rate of charge flow past a given point in an electric circuit, measured in Coulombs/second which is named Amperes.
Force. A kilogram times one meter per second squared.
RIGHT-HAND RULE
Magnetic Field (B): They fill the space around a magnet where the magnetic forces work, where they can attract or repel magnetic materials.
NEWTONS
Electric Field: The force per unit of charge
Is a vector: has magnitude and direction
Only one charge can create it.
Magnet: Device that gives off magnetic field
Have north and south pole
Q/q
Fleming's rule
Electric Force: Attractive or repel two charged objects.
Depends on amount of charge and distance between two charges
The amount of electricity transported in one second by a one amp current.
Electric Charge
What is it?
COULOMBS
Ampere's rule
Screw rule
G
The magnetic field in space around an electric current is proportional to the electric current which serves as its source.
1:30... how can he do it if it's electro?
so... can Electro become Magneto?
* He can certainly create a parallel magnetic field, but still can't attract things as in the video because magnetic force created through electric current has no polarity (+ -), therefore he would actually need to touch the objects to allow the exchange of electrons between the incomplete electrons of the surface in its last energy level and the electric field, creating therefore relative attraction (in a single moment and a single time)
But if he ran... he would not longer be a magnetic force but a current, therefore will create a magnetic force around him!
Magnetic Field
Magnetic equivalent to gauss' law
At the same time of creating an electric force, a parallel magnetic force is being created.
Electric Current
GAUSS
Magnetic flux that will induce a force.
BASIC
VECTOR:
CHARGE:
ELECTRICITY:
a numerical value (magnitud) in a specific direction.
the extent to which it has more or fewer electrons than protons.
current: flow of charge
static: can be collected or held in one place
POSITIVE: loose electrons
NEGATIVE: gains electrons
NEUTRAL: equal
conduces excess static charge and evenly spreads over it
removal of electricity
An electrical terminal to which a conductor can be attached to allow a current to flow Cathode: - / Anode: +
a passive electronic component that stores energy in the form of a magnetic field
CONDUCTOR:
DISCHARGE:
ELECTRODE:
INDUCTOR:
Gauss' Law
The strength of the electric field depends on the magnitude of the electric charge.
Electromagnetism
The study of the link between an electric and magnetic field. (Kashy, 2015)
Electro can climb walls like spider man!
Electric current (I)
ELECTRICITY
MAGNETISM
One of Maxwell's equations.
" total electric flux of a closed surface is equal to the magnitude of the charge enclosed divided by the permittivity of free space" (Wood, 2016)
Special Relativity
Valence
MAGNETIC FIELD (b)
Stationary moving of electric charges, or electrons. (Neville, 2015)
Valence electrons are in the outermost part of an atom, and are those used in exchanges.
Force of attraction or repulsion that acts at a distance (Kurtus, 2013)
PERMEABILITY
Time, Space and motion is relative or absolute.
Relative: dependent on the observer.
Absolute: remains the same independent ot the obverse position.
Internal ability to create or support a magnetic field.
- Low: not changing the field
- High: magnetic material
RATIO: proportion between material and vacuum.
Vacuum: 0 mu by zero
H:MAGNETIC FIELD STRENGTH B: MAGNETIC FIELD
*PREMITTIVITY IN ELECTRICITY
Interactive activity
What direction is the magnetic force going in this wire?
If we change the wire diameter what will happen to the magnetic force?
Can someone prove it with the formula?
socrative quizz