A wire carrying a current is able to levitate in a magnetic field.(a) Show, using a diagram, an example arrangement of a current-carrying wire and magneticfield which would result in levitation. Label the directions of the current in the wire,the magnetic field, the weight of the wire and the magnetic force on the wire.(b) What magnetic flux density is required to levitate a wire which has a mass per unitlength of 10 gcm-l and is carrying a current of 0.035 A?(c) If the drift velocity of electrons in the wire is 2.7 cms 1, what is the magnitude of themagnetic force experienced by an individual electron?(d) Label the direction of the drift velocity of the electrons on your diagram from part (a).

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