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Definition
A moving charge or a current creates a magnetic field in the surrounding
space (in addition to its electric field) |
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| The magnetic field exerts |
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Definition
a force F on any other moving charge or current
that is present in the field. |
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Definition
vector field-that is, a vector quantity
associated with each point in spaceu |
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out of its north
pole and into its south poled |
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| magnitude of magnetic force is proportional |
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Definition
| to the magnitude of the charge |
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Term
| magnitude, or "strength," of the field;is proportional |
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Definition
| to the magnitude of the force |
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Definition
| on the particle's velocity. |
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| A charged particle at rest experiences how much magnetic force? |
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Definition
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Term
magnetic force F does not have
the same direction as the magnetic field B but instead is |
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Definition
always perpendicular to
both B and the velocity |
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Definition
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Definition
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| The total force F is the vector sum of the electric and magnetic forces |
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Definition
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| magnetic field lines point |
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Definition
in the same direction a
compass would north to south |
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Term
| dot ( . ) to represent a magnetic field line vector directed |
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Definition
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| cross (X) to represent a magnetic field line vector directed |
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Definition
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The total magnetic flux through the surface is the sum of the contributions from
the individual area elements:� |
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Definition
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Definition
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| SI unit of magnetic flux is |
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Definition
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| The total magnetic flux through a closed surface is |
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Definition
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| Magnetic field lines have no ends |
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Definition
| they form closed loops through the interior of the magnet |
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Definition
magnitude of magnetic field is equal to flux per unit area across an
area at right angles to the magnetic field |
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| magnetic force is perpendicular to |
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Definition
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Definition
| can never do work on the particle |
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| magnetic force F on a current carrying conductor |
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Definition
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| magnetic dipole moment mu = |
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