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A brass tube of 0.3 m long is placed in a coil having 30 turns and carries a current of 0.2 kA at a frequency

A brass tube of 0.3 m long is placed in a coil having 30 turns and carries a current of 0.2 kA at a frequency of 600 kHz. If the resistivity of brass is 6.5 x 10-8 /m3, determine the: (i) depth of heating (ii) heat developed per unit surface area

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