What is Magnetic field on the axis of a current carring circular coil?
A current circulating in a hollow copper coil (solenoid) produces a magnetic field equal to the permeability times the turns density times the current.
B = μ x n x I
* B is the magnetic field measured in Tesla
* μ is the relative permeability of the solenoid's core which is air in this example and have a value approximated to 1.25663706E-6
* n is the turns density which equals the number of turns divided by the solenoid length
n = N/L where L is measured in meters.
* I is the current flowing within the solenoid and measured in Amperes
Relativity. If you are at rest relative to the current, you see a magnetic field. If you and the current are moving at equal velocities relative to each other, you would see an electric field. Maxwell's equations show that a magnetic field is just a moving electric field. Read More
CIRCULAR Read More
0.546 Pascals. Read More
use compass..... or if u want to determine the madnetic field direction in a current carring material, then apply right hand rule .. thumb should be in the direction of current and curl of finger will tell u the direction of magnetic field Read More
The magnetic field lines around the current carrying conductor will be a circular. i.e they originate from one side and returns back to the other side forming circular path. Read More
Circular magnetic field will create around the conductor. Read More
True... The wire carring current creates a slight magnetic field. Read More
The Magnetic field lines originate from Magnetic North pole and enters the Magnetic South pole hence they r circular Read More
Electric currents and magnetic fields are by nature and by definition related to each other. In general, a magnetic field is created by the rotation of charge. If you imagine an electron following a circular path, a magnetic field would be created in the direction perpendicular to the plane of the circle. On the other hand, electric current is defined as the flow of charge. So, an electron flowing along a wire results in current… Read More
magnetic force Read More
That is a very simple answer. Electricity! Moving electrons constitute a current, and a current is surrounded by circular loops of magnetic field. Read More
Perpendicular to both the current and the magnetic field. Read More
Yes; any current produces a magnetic field, an AC current will produce an alternating magnetic field. If the current (and therefore the magnetic field) changes quickly, you may not be able to detect it with a compass needle, for example. Read More
The deflection of a magnetic compass in the presence of an electric current, is evidence that an electric current produces a magnetic field. Read More
If the magnetic field is caused only by a current, you can turn the current off.If you have another magnetic field, for example due to a permanent magnet, with a current you can create a magnetic field that counters the first one. But that will only work in certain regions in space; you can't cancel such a magnetic field everywhere in space. Read More
What the characteristics of the magnetic field produce by flowing current? Read More
magnetic field is the field produced due to flow of charges in conductor carrying current. Read More
What happens with the energy associated to the magnetic field of a coil with electric current if the electric current is turned off?
The magnetic field or energy associated with the magnetic field will no longer be generated if the current is turned off. Read More
What happens to the direction of the magnetic field about an electric current when the direction of the current is reversed?
The magnetic field would reverse. Read More
If the current in the wire increases, the magnetic field also increases. Read More
You use a magnetic field to induce a current in a wire by moving them in relation to each other, or by varying the strength of the magnetic field. Read More
Which happens to the magnetic field of a wire when you change the direction of the current in the wire The magnetic field?
The magnetic field collapses to zero, then builds up again for the current in the opposite direction. Read More
yes.magnetic field present around the conductor. current and magnetic fields are inter related.. with current we can produce magnetic field and vice versa Read More
What statements describes the result of reversing the current in a current-carrying in a magnetic field?
When the current is reverted, the magnetic field will also be reverted. Read More
they produce a current the magnetic field has to turn motion into that current. the gas coal or water pass on that current to the magnetic field. Read More
The electrons moving through the current are atomically magnetic, and create a magnetic field around all currents. To find this magnetic field you could use the left hand rule (where you point your thumb in the direction of the current and your fingers curling represents the magnetic field movement). Read More
An electric current produces a magnetic field. Read More
The intensity of the magnetic field (measured in Teslas) produced by an electromagnet is directly proportional to the current (measured in Amperes) passing through it's coil windings. Therefore, as long as other variables remain constant, one can vary the intensity of the magnetic field by varying the current. Specifically, the intensity of the magnetic field will vary by the same factor as the current, so if the current is halved, the intensity of the magnetic… Read More
magnetic field and temperature When current flows through a conductor, it generates a magnetic field. The variation of this magnetic field later produces an electric field. Read More
Yes, for as long as the magnetic field is moving along the conductor. A static magnetic field will not induce current, a dynamic field is required. Read More
Depends whether Direct Current or Alternating Current. Only Alternating Current produces magnetic field. Read More
The magnetic force acts only on moving electric charges; A constant electric current produces an unchanging magnetic field and a changing electric current produces a changing magnetic field. Read More
The magnetic field collapses. Read More
If a conductor carrying an alternating current is formed into a coil the magnetic field that is generated?
If the current is alternating, the magnetic field will also be alternating. Read More
the magnetic field would constantly change, that's why the AC current is converted to DC current Read More
-- A current flowing through a conductor creates a magnetic field around the conductor. -- Moving a conductor through a constant magnetic field creates a current in the conductor. -- If there's a conductor sitting motionless in a magnetic field, a current flows in the conductor whenever the strength or direction of the magnetic field changes. Read More
The force experienced by a current carrying conductor placed in a magnetic field is strongest when that conductor is placed perpendicularly to the magnetic field. Read More
Electric current, magnetic field intensity, length of the conductor, angle between the electric current and magnetic field Read More
If an electric field is changing, that means that electric charges must be moving around. That is a current, and a current produces a magnetic field. Read More
Yes. More specifically, a conductor must be moved in a magnetic field, or the magnetic field must move. (Otherwise, generating a current would violate Conservation of Energy, so without movement, no current is possible.) Read More
actually magnetic field is the region around magnet and magnetic induction is the process of using magnetic field to produce current , voltage etc'magnetic induction is basically force per unit length and current. from [fatima ] Read More
You can reverse the direction of the magnetic field by reversing the direction of the electrical current. Read More
An electric current produces a magnetic field. True. Read More
No. Static electricity will not produce a magnetic field. A magnetic field is basically caused by moving charges, i.e., by a current, by electrons orbiting their atom, etc. Read More
Why does the current carrying conductor experiences a force when it is placed in magnetic field state Fleming's left hand rule?
the current carrying conductor generates it own magnetic field which then interracts with the external magnetic field. Read More
The copper by itself will do nothing of the sort. It will be surrounded by magnetic field lines if a current flows through it. It is the current that produces the magnetic field lines. Read More
The field reverses to increase the current. Read More
The force on current carrying conductor kept in a magnetic field is given by the expression F = B I L sin@ So the force becomes zero when the current carrying conductor is kept parallel to the magnetic field direction and becomes maximum when the current direction is normal to the magnetic field direction. Ok now why does a force exist on the current carrying conductor? As current flows through a conductor magnetic lines are… Read More