ISQ tuletatud suurus, ISQ derived quantity, suurus, mis iseloomustab magnetvoo intensiivsust läbi ühikpindala, vektorivälja suurus B, mis avaldab mis tahes laetud osakesele kiirusega v ja jõuga F, mis on võrdne v x B vektortoote ja tahke osakese elektrilaenguga Q, vector field quantity B which exerts on any charged particle having velocity v a force F equal to the product of the vector product v x B and the electric charge Q of the particle, vector quantity expressed by F = qv × B where F is the force acting on a test particle with electric charge q traversing a magnetic field with flux density B, with velocity v