QUESTION 2 2.1 The magneto coil of a car rotates at 1300 rpm. The coil has 80 windings and a length and width of 70 mm a

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Question 2 2 1 The Magneto Coil Of A Car Rotates At 1300 Rpm The Coil Has 80 Windings And A Length And Width Of 70 Mm A 1 (83.83 KiB) Viewed 9 times

QUESTION 2 2.1 The magneto coil of a car rotates at 1300 rpm. The coil has 80 windings and a length and width of 70 mm and 90 mm respectively. The pole shoe has an area of 0.4 m² and it moves through a magnetic flux of 35 mWb. Determine the induced emf. (6) 2.2 Draw a pole shoe of a DC Machine and show the field winding. Use this to investigate if the dimensions of the coil in 2.1 above is realistic w.r.t the shoe area. If you feel it is unrealistic recommend better dimensions (4) Is it a necessity to get both the coil dimensions and the shoe area for the calculation in 2.1 (2) 2.3 The mutual inductance of two coils A and B, wound on a common core is 20 H. If the current in coil A varies from 3 A to 15 A in 200 ms, Calculate: 1. II. the emf in coil B the change in the flux of B if coil B has 200 turns