Do electric and magnetic fields always form closed loops
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Definition1/5
Magnetic fields do, because there's no such thing as an isolated
magnetic "pole",
and a magnetic line always starts and ends at opposite poles of
the same
magnetized object.
But electric fields don't. You can easily have a bundle of
isolated positive charge
over here and a bundle of isolated negative charge over there,
whereupon the
lines of the electric field start on one bundle and end on the
other bundle.
But electric field lines can also exist in closed loops, and
they do that in radio waves, where the electromagnetic field
propagates with an electric field component and a magnetic field
component, and they both form closed loops.
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Term1/5
When none of the magnetic domains in a material will stay aligned the material is called
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Definition1/5
not magentic
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Term1/5
An atom that is only weakly affected by a magnetic field
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Definition1/5
diamagnetic
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Term1/5
What type of fields are created by an arrangement of electric charges or a current
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Definition1/5
Magnetic fields can be created by charges or the flow of
current.
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Term1/5
In terms of the scientific definition of work magnetic fields can do work but electric fields cannot true or false
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Definition1/5
false
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Cards in this guide (5)
Do electric and magnetic fields always form closed loops
Magnetic fields do, because there's no such thing as an isolated
magnetic "pole",
and a magnetic line always starts and ends at opposite poles of
the same
magnetized object.
But electric fields don't. You can easily have a bundle of
isolated positive charge
over here and a bundle of isolated negative charge over there,
whereupon the
lines of the electric field start on one bundle and end on the
other bundle.
But electric field lines can also exist in closed loops, and
they do that in radio waves, where the electromagnetic field
propagates with an electric field component and a magnetic field
component, and they both form closed loops.
When none of the magnetic domains in a material will stay aligned the material is called
not magentic
An atom that is only weakly affected by a magnetic field
diamagnetic
What type of fields are created by an arrangement of electric charges or a current
Magnetic fields can be created by charges or the flow of
current.
In terms of the scientific definition of work magnetic fields can do work but electric fields cannot true or false