Question

A steel rod with diameter of 1.5 cm is inserted inside an 8-turn coil. The cross section area and length of the coil are 3.14 cm2 and 5 cm, respectively (see figure below). In addition, the relative permeability of the rod is 5,000 and has an ac resistance of 0.298 Q/m. If we applied a current i(t) Isin(200m × 103 t) to the coil, calculate the following 1. The induced voltage across the steel rod 2. What would be the magnitude of the eddy current flowing across the rod? 3. What is the amount of power being dissipated in the rod? Hint: The magnitude of the magnetic field density inside of a solenoid can be determine with the following equation, B Use the figure below as your reference MAGNETIC FIELD INDUCED CURRENT IN WORKPIECE CURRENT IN CO em

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