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QUESTION 2 [14] A coil of 720 turns is wound on a wooden ring. A direct current of 7.2A flowing in the coil is reversed in 0.32 seconds. The current causes a flux of 36.6mWb in the coil. Calculate the emf induced in the coil Calculate the self-Inductance of the coil 2.1 2.1.1 2.1.2 2.2 A conductor, 6.5 m long, is moved at a uniform speed at right angles to its length and to a uniform magnetic field. The density of the magnetic field is of 0.64T. The emf generated in the conductor is 36V and the conductor is part of a closed circuit that has a resistance of 4.30. Calculate the velocity at which the conductor moves through the magnetic field (2) Calculate the force acting on the conductor due to the magnetic field (2) 2.2.3 Calculate, work done when the conductor has moved 92.3cm through the magnetic field (4) 2.2.1 (3) (3) 2.2.2