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Jamez
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Why are magnetic fields formed from an electric current? and why does the field occur in an anticlockwise direction?
Jamez said:Why are magnetic fields formed from an electric current? and why does the field occur in an anticlockwise direction?
Even better (MHO):ZapperZ said:...Why not ask why electric currents are formed by changing magnetic fields? ...Zz.
They are linked, like two links of a chain. Both are circles of the same size. The planes of the ring are perpendicular and each passes thru the center point of the other's circle. Hope that helps - I can't stated it any more clearly.cepheid said:I'm trying to figure out what you're saying here, but I can't visualise the placement of the two rings...
Electric currents create magnetic fields because they consist of moving charged particles, such as electrons, which generate a magnetic field around them as they move.
The direction of an electric current determines the direction of the magnetic field it creates. The right-hand rule states that if the thumb of your right hand points in the direction of the current, then the fingers curl in the direction of the magnetic field.
Magnetic fields interact with each other through attraction or repulsion. Opposite poles of magnets attract each other, while like poles repel. Similarly, magnetic fields created by electric currents can also attract or repel each other.
Yes, magnetic fields can be shielded or blocked by certain materials, such as iron, nickel, and cobalt. These materials have high magnetic permeability, which means they can redirect the magnetic field lines, effectively shielding the area behind them from the magnetic field.
No, not all magnetic fields are created by electric currents. Some magnets, such as permanent magnets, have their own magnetic fields without the need for an electric current. These magnets have a north and south pole and create a magnetic field that is constant and does not change over time.