In the following magnetic structure the relative permeability is u, = 2500 and the core cross- sectional area is A= 0.02 m². The length of the air gap is d 1.5 mm and its effective cross- sectional area is 10% more than the core area due to fringing effect. Assume the current in coil 1 is i(t) = 10 + 10 sin(2nt +n/3) A. a) Draw the equivalent magnetic circuit and determine the values for all circuit elements; b) What is the magnetic flux in the air gap? c) Find the induced voltage (magnitude and polarity) across coil 2 of N2 100 turns when placed around the left arm as shown. What is the rms value of the induced voltage? ,10 Cm 10 40 10 40 10C Cm tair gop coil a 100 40m Can N = 50 coil 1

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Type of Magnetic Material

Every material has a unique composition that defines its magnetic behavior. Some materials get attracted towards a magnet and are called magnetic materials. Based on the magnetic properties held by each material, they are classified into different types.