AMPERE'S LAW

Ampere´s Law

Warm Up

What is this image about?

What do you know about magnets?

Ampere's law video

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.

Glossary

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

Equation

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

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