Calculating Magnetic Force Flashcards

All 3 cards in this deck

What is the equation for the force on a conductor at right angles to a magnetic field, with units?

$F = B \times I \times l$
force (N) = magnetic flux density (T, or N/A m) × current (A) × length (m)

True or false? In $F = B \times I \times l$ a length in mm and a current in mA can be substituted directly.

False. Convert to metres and amperes first, e.g. 30 mm = 0.030 m and 93.1 mA = 0.0931 A.

What does the magnetic flux density, $B$, of a field tell you?

How strong the magnetic field is, shown by how closely packed the field lines are.