A straight conductor of length 0.30m is suspended freely so that it lies along the North–South direction. It carries a current of 5A from South to North. The region contains a uniform horizontal magnetic field of 0.8T directed from East to West.
(i) Calculate the magnitude of the force exerted on the conductor.
(ii) Predict the direction in which the conductor will initially move.
(iii) The magnetic field is now reversed while keeping the current direction unchanged. What will happen to the direction of the force? Explain your answer.