(a)[3]
State the direction of the force on the metal rod caused by the current. Explain your answer.
(b)[1]
State how this alteration changes the force on the metal rod.
(c)[4]
Describe what parts J, K, L and M do.
Physics 0625 · IGCSE · Electromagnetic effects
Electromagnetic effects — practice question
Fig. 8.1 shows a metal rod hanging in the magnetic field created by two permanent magnets. The rod is linked to a cell, so a current flows through it.