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1.In the design of transformers and electrical drives, materials such as copper and iron are widely...

1.In the design of transformers and electrical drives, materials such as copper and iron are widely used. Explain why this is so and give one example of the use of such materials in the design of one particular device or drive.

2.A magnetic material has a relative permeability of 4500. A magnetic circuit is constructed using this material of length 0.5 m and area 0.025 m2. Design a coil with a suitable number of turns and current flow to establish a magnetic flux density of 1.2 T in the material. Calculate the flux linkages for your coil design.

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