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Is it possible to have just an electric field wave or just a magnetic field wave?
Jcdm23
Yes it is, because, when an electrectic field hits magnetic field, they both hit and start farting and kissing each other, because the ATTRACT each other, HOLDING them selsves in SO THATS THE ANSWER!
Wiki User
∙ 14y ago
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What is the difference between magnetic force and electric force?
The force is just one aspect of magnetism. For example, there is a magnetic field all around a magnet. Of course they are related, but "magnetism" is a wider term for the entire phenomenon - it may relate to the force, to the magnetic field, or to a few other things.
Is it possible that electric intensity at a point is zero but electric potential is not zero?
There are two answers to your question, and they depend on whether we're talking about electrostatics or electrodynamics.Electrostatics:No. In the absence of a varying magnetic field, the electric field intensity is equal to just the negative gradient of the electric potential; E = -∇Φ. So, if Φ is 0, its gradient, which is just the vector field made from the partial derivatives of Φ, has to be 0. The reverse, however, can happen. E can be 0, but Φ doesn't have to be; it can also be a non-zero constant. Electrodynamics:Yes. In the presence of a varying magnetic field, E = -∇Φ - ∂A/∂t, where A is the magnetic vector potential, and t is time. So, if Φ is 0 this time, E can still be equal to the possible non-zero term, -∂A/∂t.
Under what circumstances can electrical charges produce a magnetic field?
Yes, a moving electric charge creates a magnetic field around its path of travel, and this is true for any charged particle. Further, it is the basis for the idea that the electromagnetic force is one force. Physics views electric fields and magnetic fields as being derived from just that one force we mentioned. When we see charges moving continuously, we will see a "standing" magnetic field around the current path. And the magnetic field can be made to do many useful things. This is the idea behind almost all electric power generation around the world as well as countless electronic applications.
What is the imaginary line that helps us visualise a electric or magnetic field called?
They are force field lines at right angles to each other as depicted in the related link.
How does changing current affect the magnetic force on a wire suspended in a magnetic field?
Current passing through a wire in a magnetic field creates its own magnetic force in some direction. If you increase the current, force will be increased. If the direction of current is changed, direction of force will also be reversed. Direction of current is found by applying right hand rule.
Is electric charge moving in uniform motion produce both electric and manetic field?
Electric charge produces an electric field by just sitting there. It doesn't have to move. If it moves, it produces a magnetic field. It doesn't matter how the motion would be described.
What is the difference between magnetic force and electric force?
The force is just one aspect of magnetism. For example, there is a magnetic field all around a magnet. Of course they are related, but "magnetism" is a wider term for the entire phenomenon - it may relate to the force, to the magnetic field, or to a few other things.
Is it possible that electric intensity at a point is zero but electric potential is not zero?
There are two answers to your question, and they depend on whether we're talking about electrostatics or electrodynamics.Electrostatics:No. In the absence of a varying magnetic field, the electric field intensity is equal to just the negative gradient of the electric potential; E = -∇Φ. So, if Φ is 0, its gradient, which is just the vector field made from the partial derivatives of Φ, has to be 0. The reverse, however, can happen. E can be 0, but Φ doesn't have to be; it can also be a non-zero constant. Electrodynamics:Yes. In the presence of a varying magnetic field, E = -∇Φ - ∂A/∂t, where A is the magnetic vector potential, and t is time. So, if Φ is 0 this time, E can still be equal to the possible non-zero term, -∂A/∂t.
How will calculate the power of magnet?
The electric power is measured the same as in any other electric circuit, in watts. You calculate this by multiplying the current (in amps) by the potential difference (in volts) across the circuit. So: P = I V If you meant how do we measure the strength of the magnetic field generated, there are two different vector fields that may be called "magnetic field". These are the H-field and the B-field. The H-field may also be called the "magnetic field intensity", the "magnetic field strength", the "auxiliary magnetic field" or the "magnetising field". It is measured in amps per metre. The B-field may also be called the "magnetic flux density", the "magnetic induction", or the "magnetic field". It is measured in teslas.
Are all magnets man-made?
No, a magnetic field is induced by moving electric charges. If a ferrous material (one containing iron) is placed in a magnetic field, the individual magnetic dipoles can be aligned in accordance with the magnetic field. Since the molten iron in the earth's core carries charges, a magnetic field is induced around the earth (with field lines coming OUT of the south pole and into the north). This magnetic field can align magnetic dipoles just as any man-made electromagnet can.
Can you make a magnet without using a magnetic material Explain?
If you are referring to a magnet as an object that possesses a permanent magnetic field, then yes. There are three circumstances where magnetic fields exist, but not as a result of a permanent magnet. 1. Electric current causes a magnetic field. Thus, any wire carrying a current or even a current without a wire (like a lightning bolt) will be surrounded by a magnetic field. Since electric current is made up of moving electric charges, it is actually true than any moving electric charge creates a magnetic field. 2. It is difficult to observe outside of a scientific laboratory, but when there is an electric field that is varying in time, that creates a magnetic field. Though not easy to demonstrate directly, this turns out the physical phenomena the allows the creation of elecrtromagnetic waves, e.g. like the light we see with our eyes. 3. Thirdly, one can cause materials that are not able to work as permanent magnets to act as temporary magnets. This is the basis for electromagnets. A steel or iron core with an electric current running through a coil surrounding the core will produce a magnetic field. If you simply cut off the power source, the electric current will no longer flow through the coil. No electric current, no magnetic field. When a non-permanent magnet is created, the magnetic field it produces is just the same as the magnetic field of a permanent magnet, until the source is removed and the field disappears. All of these matters together are an essential part of the basics of electromagnetism which describes how and why the phenomena work.
What is a combination of electricity and magnets?
It is the electromagnetic force that speaks to the electric and magnetic forces. They (electric force and magnetic force) are one force in the eyes of the physicist. Use the link below for more information.
How are electric currents and magnetism related?
Magnetism could be produced due to the flow of electrical current. This was first discovered by Oersted. By changing the magnetic flux linked with a coil electric current could be induced. This was first studied by Michael Faraday. Just due to the orbital motion or spin motion of electron magnetism is produced in tiny form and is known as magnetic dipoles. Such dipoles getting oriented in different form lead to form dia, para and ferro magnetic materials.
Under what circumstances can electrical charges produce a magnetic field?
Yes, a moving electric charge creates a magnetic field around its path of travel, and this is true for any charged particle. Further, it is the basis for the idea that the electromagnetic force is one force. Physics views electric fields and magnetic fields as being derived from just that one force we mentioned. When we see charges moving continuously, we will see a "standing" magnetic field around the current path. And the magnetic field can be made to do many useful things. This is the idea behind almost all electric power generation around the world as well as countless electronic applications.
Why does an accelerated charge produce a magnetic field around its path?
It just does. Electricity and magnetism turns out to be two sides of the same force, called electromagnetism, and either easily converts to the other.When you change the electric current through a material (or accelerate a charged particle), you get a magnetic field as a side effect. We use this to make electromagnets.When you change a magnetic field, you get an electric field as a side effect. We use this to make electricity generators.See related Wikipedia link.
Changing magnetic field produces a electric current?
I think it is the other way round and that an electric current produces a magnetic field.This is copied from KS3 bitsize:Magnets and electric current - ElectromagnetsWhen an electric current flows in a wire it creates a magnetic field around the wire.By winding the wire into a coil we can strengthen the magnetic field. Electromagnets are made from coils like this.Making an electromagnet strongerWe can make an electromagnet stronger by doing these things: wrapping the coil around an iron coreadding more turns to the coilincreasing the current flowing through the coil.The magnetic field of an electromagnetThe magnetic field around an electromagnet is just the same as the one around a bar magnet. It can, however, be reversed by turning the battery around. Unlike bar magnets, which are permanent magnets, the magnetism of electromagnets can be turned on and off just by closing or opening the switch.
The electric field passes through electrons.do the magnetic field have some sort of element like electron to exist?
Not that we are aware of. Magnetic fields are created by moving charge (electrons). The field is always at a 90° angle to the direction of the charge's motion. So an electron spinning around the nucleus will cause a tiny magnetic dipole, direction depending on which direction it is spinning. Atoms with multiple electrons may have electrons spinning in different directions which could cancel out the net effect, but if there is a net in one direction, and several those line up pointing in the same direction, then you have a magnet.
