Individual moving charge particle also
creates a magnetic field around it. Magnetic field strength depends on the
number of charged particles passing through it. The strength of magnetic field
depends on the amount of charges passing through the wire and velocity of the
charges passing through the wire.
Current is the flow of charge/second. By applying
Flaming’s left-hand rule, you can get the direction of force caused due to
magnetic field. This magnetic force guides the motion of the current. The
magnetic force is maximum when it is perpendicular to the electric field and
perpendicular to the direction of motion.
Force exerts due to electric field is F== Eq
Where E is the electric field and q is the charge. So
Electric field is Force/Unit charge.
Force exerts due to magnetic field is F== Bqv
Where B is value of the magnetic field, q is the
charge and v is its velocity.
Thus, if we equate both the values, Eq==Bqv
V==E/B
When electrical field strength
is equal to Magnetic field strength, there will be no net force applied on a charged
particle and particle move in a straight line.
A moving charges particle in a magnetic field is being
curved and going around in a circle of radius r.
Force applied on that particle is
F==Bqv
But, if anything moves in a circle, there is
centripetal force acting on it.
The value of centripetal force,
F==mv2/r
Where m is the mass of the particle, v is the velocity
and r is the radius.
Now equate both the forces. And after solving this we
get
R=mv/Bq
Thus, different charged particles have different
velocities. Mass and velocity of the particle determine the strength of the
magnetic field. If particle is rotating fast, the magnetic field is increased.
When particle moving in a circle, its angular momentum balance the centripetal
force.
Magnetic field lines pass through a certain area is
called a Flux density and its unit is Tesla.
Magnetic field strength /unit area is called flux and it
denoted with symbol ᶲ
Magnetic Flux== BA
Where B is the magnetic field strength or magnetic
lines passing through the area A. Magnetic flux is maximum when the filed lines
falling perpendicular to the area A.
Now consider planet earth in
this scenario, net electric strength outside the earth is zero so is the
magnetic strength or flux. The electric field strength and magnetic field
strength are accumulated inside the sphere that increased its flux density.
According
to Einstein Special theory of relativity, the person moving in space with
velocity g is exactly at the same state as the person standing on earth and
subject to gravity g. For a stationary frame, which is earth, there is no
magnetic field exist because there is no motion in charged particle. Again,
perspective matter……from which frame of reference you are talking to. Earth is
not moving for us! For a moving frame, which is moving in space, earth is in
motion in the opposite direction to the moving frame.
Both perspectives are correct as both of them think
that they are at rest and the rest one is moving.
For a stationary frame of reference, there is no
magnetic force exist. It is balanced by the apparent force of gravity.
For a moving reference frame,
there is an increase in electrical field, magnetic field, and velocity. Time is
obviously changed in two frames.
Relatively increased electric and magnetic field
strength and increased velocity of rotation provides mass and density to the
object.
If anybody is interested to go
in details how these changes are derived, there are good lectures of physicist
HC Verma on electromagnetism. You can refer them and enrich your knowledge.
Electromagnetism
is the functioning which creates illusion of gravity. The electric and magnetic
fields can be obtained from the components of the electromagnetic tensor. The
electromagnetic filed tensor is a mathematical object that describes the
electromagnetic field in space time.
Whole
cosmos is filled with charged particles and that is the reason there is an
electric filed and magnetic field are prevalent in space. When any object falls
in the interwoven electromagnetic field, it produces stress in all directions
and distort the space-time fabric. This creates a cavity and gives an illusion
of gravity! Mass and momentum flux curves space time. That is well defined in tensor
field.
You
want to understand the strength of electromagnetism, take an example of
Jupiter. Jupiter’s magnetosphere is the largest and most powerful of any
planetary magnetosphere in the Solar system. Jupiter magnetic field is 20 times
stronger than earth. Some way it could be associated with rapid rotation of
Jupiter around its axis that increases the magnetic field intensity.
Earth rotation period is 24 hrs and for Jupiter’s rotational period is 9.8
earth hours. Because of this rapid rotation, the high energy charged particles
are trapped in Jupiter’s atmosphere and create massive magnetic field.
Jupiter’s massive size, strong magnetic field and dense core make the gravity
so strong on Jupiter. This massive size of Jupiter produces a big cavity in a
space. The surface gravity on Jupiter is 2.4 times that of the surface gravity
of Earth.
Gravity
on earth 9.8 m/s2. It’s more of free fall. When anything free fall, it
accelerates with the speed of 9.8 m for every second, towards the ground.
Gravity on Jupiter is 24.79 m/s2.
Is
there anything on earth which has the utmost gravity to attract almost anything?
Yes, Money!! Money can attract anything in this world, today. But when we see
the primitive time when humane were in development phase, the primitive stage
and that stage is also known as Satyayuga. They knew nothing about money. Food,
shelter, safety, Togetherness, team spirit, would the prime importance for
them. Now the world has gone upside down. So, Gravity is not a fixed entity.
It’s more of dynamic phenomenon of space-time continuum.
Gravity
is just our experience, our approach towards massive thing. Now, what is
massive, is again your perspective.
Why
gravity is negligible compare to other fundamental forces? At quantum level we
see particles in their truest form, unalloyed form that has filtered out all
impurities. No more sheath over it except the original particle in its truest
form remain.
How do you suppose to see something
at quantum level, which is non-existent in real form? Something which is
designed on individual’s perspective and at the next moment cease to exist like
never been there.
It’s
nothing more than the Maya of prakriti! No rotating body can free itself from the
gravitational principle. This is the only fact to keep in mind! When you continuous rotate in a circle of
Matrix, you can never be out of it. You can never differentiate between reality
and illusion.
Moksha gives you clarity of vision to see the thing as it exist. For
knowing gravity, you need to go one level deep, you need to go at energy level.
Gravity is the energy that you feel or the force you say that you feel. And
it’s not necessary that the other one is also feeling the same energy.
When someone is in love, only that person can tell how
it feels. Rest cannot get any experimental proof of this.
All theories are based on experimental proof but the
truth is they even haven’t seen protons and neutrons. It is the after affect
that they measured.
Gravity is the spark that ignited the primaeval fire of kama, the desire in the tranquil state of nothingness and thus the Big bang happened. That was the first tiny string vibration propagated in time and eternal time manifested in a space-time continuum. Theory of relativity explains the behavior of space time and gravity is one of the phenomena of space time. It never claims the origin of gravity; it tells only how we perceive gravity.
Gravity is the spark that ignited the primaeval fire of kama, the desire in the tranquil state of nothingness and thus the Big bang happened. That was the first tiny string vibration propagated in time and eternal time manifested in a space-time continuum. Theory of relativity explains the behavior of space time and gravity is one of the phenomena of space time. It never claims the origin of gravity; it tells only how we perceive gravity.
Gravity
is the source of energy within us, the very basics of our existence but we don’t
care. That ‘why It is inactive at quantum level. We only see and feel the
apparent force of gravity in manifested forms. This is the reason relativity
principle works very well in our world.
Gravity
is the universal truth, basis of creation. Whenever you get over gravity, you
return to the source. Vairagya is opposite to Gravity! This is the aim of every
soul!
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