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Some fundamental particles in nature, happened to have an electric field. We just named one of them "electron". That's the simple answer.
From an engineering point of view, there is no such thing as an electric field or electric line of force. Its a classical physics construct that we came up with, in order to explain what happens when charged particles interact with each other.
Why do some particles have charges in the first place? Its because of some complex quark level interaction that I don't yet understand. Thus we have positive and negative charges, which attract each other, while like charges repel and we made up "electric lines of force" to explain them.
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Does light produce both electric and magnetic field?
light exhibit magnetic field but i cant say about electric Field...
Can an electric current produce a field magnetism around it?
yes. electric current low always generates a magnetic field.
What depends on electric current to produce a magnetic field?
Your question is not quite crystal clear. However, a magnetic field is produced by a moving electric charge. Ordinarily, a current passing through a conductor will produce a magnetic field. In a fixed magnet, a group of the electrons has been organized so that their spins are aligned and this produces a permanent magnet. The Earth's magnetic field is the net result of a number of individual fields caused by electric currents generated in the hot interior of the mantle.
The movement of electrons results in what kind of activity?
A chemical reaction. An electric field gradient ( electric potential)
What is an electric current through a metal?
It's flow of electrons under directing external electric field.
Can moving electrons through a magnetic field can produce an electric current?
Electrons moving is an electric current. An electric current moving at an angle to a magnetic field will produce a Force.
What causes a magnetic field to be set up around a wire?
Passing an electric current through a wire will produce an external magnetic field. This is because the electrons have spin and this spin is what produces the field. Spinning electrons (of certain characteristics) also produce the magnetic field of permanent magnets. And no spinning electrons, no magnetic field.
Which is true electric current running along a wire can be used to produce magnetic force or moving electrons through a magnetic field can produce an electric current?
They're both true, but I'm not comfortable with the way they're stated. I would have said: -- Electric current through a wire produces magnetic force. -- Moving electrons constitute an electric current, whether or not they're moing througha magnetic field.
What is electrons contribution to electricity?
flow of free electrons produce electric current
What are two ways to produce electric fields electric fields are produced by charged particles or by changing magnetic fields?
One way to produce an electric field is through the presence of charged particles. When charged particles, such as electrons or protons, are stationary or in motion, they generate an electric field around them. Another way to produce an electric field is through changing magnetic fields. According to Faraday's law of electromagnetic induction, a changing magnetic field induces an electric field, causing the flow of electric charges.
How is an electromagnet wave generated?
We produce electric field and magnetic field. If we change the electric field with time (so magnetic field alse change), required frequency, then we produce electromagnetic wave.
What does electric current produce?
A electric current produces a magnetic field
Does light produce both electric and magnetic field?
light exhibit magnetic field but i cant say about electric Field...
What device uses motion in an electric field to produce an electric current?
electric genarator
Can a changing magnetic field produce a steady electric field?
Not a steady but a moving electric field can be produced by ever changing magnetic field.
What are the four Maxwell's equation?
Gauss's law: Electric charges produce an electric field. Gauss's law for magnetism: There are no magnetic monopoles. Faraday's law: Time-varying magnetic fields produce an electric field. Ampère's law: Steady currents and time-varying electric fields produce a magnetic field.
What must occur to produce electric currents?
transfer/movement of electrons
