Showing posts with label Electricity and Magnetism. Show all posts
Showing posts with label Electricity and Magnetism. Show all posts

Thursday, November 22

The Relationship between Electricity and Magnetism


Electricity is related to both electrons and protons both carry a charge. Electrons carry positive charge
and protons carry positive charge. Protons concentrated in a small area called nucleus and placed in
the centre of atom. The motion of electrons is outside of nucleus in orbital. So, the moving of electrons
is response of Electricity. When an object is placed in magnetic field called magnet, it is due to motion
of electrically charged particles. Magnet has two poles called North poles and South poles. Two
magnets of same poles are repel each other while magnets of different poles are attracted each other.
Magnetism is a force of attraction or repulsion that acts at a distance. Electromagnetism definition is
correlated with electricity and magnetism each other.Please express your views of this topic Define Second Law of Thermodynamics by commenting on blog.

According to Dutch physicist Hendricks Anton Lorentz, Lorentz force law is the electric current applied
on a charged particle is parallel to the local electric field. The magnetic force, however, is perpendicular
to both the local magnetic field and the particle’s direction of motion. According to lenzs law, when an
electric force applied on a conductor then due to current it induced electromotive force. Lenz found a
way of direction of electromotive force and current of electromagnetic field. The direction of current
induced in magnetic field is opposite to direction of magnetic flux changes. The formula of Lenz law
shows negative sign to opposition of magnetic flux from the electric current.Is this topic Electric Flux Symbol hard for you? Watch out for my coming posts.

What is the Relationship between Electricity and Magnetism

Electromagnetism is also known to be as a Relationship between Electricity and Magnetism. Electricity
is produces due to magnetic effect and magnetism produces due to electric effect. When an electric
field is constant would never produce magnetism. Similarly when a magnetic field has constant value,
is doesn’t produce electric field. In our daily life we use many appliances based on electromagnetism
like television, computer etc. When an electric current is carried by a circular wire then magnetic field
produced will be same as magnetic field of bar magnet with their poles. When a magnetic field is linear
then circular electric field produces. When the electric current is carried in a straight wire then magnetic
field produces in a circular manner. Electricity and Magnetism equations are used to solve problems
related to daily life. Dr. Robert Becker was regarded as most well renowned scientist whose work
involved in the healthful and harmful effects of electromagnetic fields on the human body.

Electricity and Magnetism


How Induction Heating Works

For this a high frequency source is connected to the induction coil which generates high frequency
current in the coil. This in turn generates high and frequently varying magnetic field inside the induction
coil. The changing magnetic field induces a current in the targeted conductor. As a result of this large
amount of current passes through the target and it is known as eddy current. High frequency current
causes the skin effect which causes the AC to pass into a thin layer. Because of this effect resistance of
the target gets increased and leads to heating of target material through induction. During this process
induction coil does not get heated.Having problem with Wavelength to Frequency Equation keep reading my upcoming posts, i will try to help you.

Gravity Electromagnetism

Electromagnetism and gravity are two different forces in nature. Electromagnetism concerns with the
forces between electrically charged particles. Gravity is the attraction force between all bodies having
mass. Gravity is always attractive but electromagnetic force can be attractive or repulsive.

lenz's law equation

This is given as: V=- N

V is the induced emf due to change in flux φ.

N is number of turns of wire. The minus sign tells which way the induced current flows, based on the law
that magnetic field due to the induced current opposes the change in the flux that produced it.Please express your views of this topic Examples of Doppler Effect by commenting on blog.

Laws of Electromagnetism

Biot-Savart law: magnetic field generated due to a current carrying conductor of infinitely small
length dl is:
dB=(μo I dl sinθ) / 4πr2
Ampere's law: current generates magnetic field and its equation is given as:
∑B.dl=μo I

Force law: force on a charge q moving in a magnetic field B with velocity v is:

F =q)

Faraday's law: voltage induced in a circuit by change in magnetic flux is:
V=-

Induction Heating Coils

These coils are used in induction heating process to generate alternating magnetic field. Induction
heating coils are connected to a source of high frequency electricity which could produce high
Alternating Current through the coil. Induction coils are used to heat target material and induction coils

Biot Savart Law Derivation

Consider a small current carrying element of length dL with current I. Let r be the position vector of a
point P from the current element dL and θ be the angle between dL and r.

As per this law, the magnetic field dB induced at a point P due to current element depends on following
factors.

dBI
dBdL
dBsinθ
dB(1/r2)

Combining these we get

dBIdLsinθ/r2

dB=K Idl sinθ/r2

K=μ0/4π

Thursday, November 15

The Relationship between Electricity and Magnetism


The Relationship between Electricity and Magnetism

Electricity is related to both electrons and protons both carry a charge. Electrons carry positive charge
and protons carry positive charge. Protons concentrated in a small area called nucleus and placed in
the centre of atom. The motion of electrons is outside of nucleus in orbital. So, the moving of electrons
is response of Electricity. When an object is placed in magnetic field called magnet, it is due to motion
of electrically charged particles. Magnet has two poles called North poles and South poles. Two
magnets of same poles are repel each other while magnets of different poles are attracted each other.
Magnetism is a force of attraction or repulsion that acts at a distance. Electromagnetism definition is
correlated with electricity and magnetism each other.I like to share this Electric Flux Units with you all through my article.

According to Dutch physicist Hendricks Anton Lorentz, Lorentz force law is the electric current applied
on a charged particle is parallel to the local electric field. The magnetic force, however, is perpendicular
to both the local magnetic field and the particle’s direction of motion. According to lenzs law, when an
electric force applied on a conductor then due to current it induced electromotive force. Lenz found a
way of direction of electromotive force and current of electromagnetic field. The direction of current
induced in magnetic field is opposite to direction of magnetic flux changes. The formula of Lenz law
shows negative sign to opposition of magnetic flux from the electric current.



I have recently faced lot of problem while learning 0th Law of Thermodynamics, But thank to online resources of math which helped me to learn myself easily on net.

What is the Relationship between Electricity and Magnetism

Electromagnetism is also known to be as a Relationship between Electricity and Magnetism. Electricity
is produces due to magnetic effect and magnetism produces due to electric effect. When an electric
field is constant would never produce magnetism. Similarly when a magnetic field has constant value,
is doesn’t produce electric field. In our daily life we use many appliances based on electromagnetism
like television, computer etc. When an electric current is carried by a circular wire then magnetic field
produced will be same as magnetic field of bar magnet with their poles. When a magnetic field is linear
then circular electric field produces. When the electric current is carried in a straight wire then magnetic
field produces in a circular manner. Electricity and Magnetism equations are used to solve problems
related to daily life. Dr. Robert Becker was regarded as most well renowned scientist whose work
involved in the healthful and harmful effects of electromagnetic fields on the human body.