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Level 165

Magnetic Fields & Induction


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magnetic field
a vector force field that surrounds any magnetic material
magnet
a body that can attract certain substances, such as iron or steel, as a result of a magnetic field
magnetic lines of force
invisible lines directed from the north pole through the space near the magnet into the south pole
direction of force
always perpendicular to the direction of the current and also perpendicular to the direction of the magnetic field (right-hand rule)
zero force
if the current is parallel to the field
strongest force
if the current is perpendicular to the field lines
tesla (T)
SI unit for magnetic field B
Gauss (G)
10^-4 Tesla (T)
magnetic force formula
F(base B) = q v x(times) B