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Question 2 - Transformers a) State Faraday's Law for a transformer and prove the equation for the R.M.S. voltage across the winding, E= 4.44 N, Omf. (5 marks) b) Calculate the transformer core area that is required to limit the core flux density to 1.75T, when using 1000 turns on the primary and the power supply source is 240V at 50Hz. Write your answer in cm? (4 Marks) c) A 35 kVA, 415/240 V, 50 Hz single-phase transformer has the following parameters: R1 = 0.162 R2 = 0.08522 Rc = 24092 X1 = 0.3022 X2 = 0.1522 Xm= 10012 The transformer delivers 27kW at 0.85 power factor lagging to a load on the low voltage side requiring 240V across it. Draw the schematic of the transformer circuit and calculate the primary terminal voltage. (16 Marks)