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Electromagnetic...

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  • Question 1
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    The energy stored in the magnetic field of the solenoid of length 40 cm and 8 cm diameter wound with 1000 turns of wire carrying a current of 10 A is ________ J (μr = 1)

  • Question 2
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    The toroidal core has mean radius 10 cm and circular cross-section with a = 1 cm if the core is made of steel (μ = 1000 μ0) and has a coil will 200 turns, then the amount of current that will produce a flux of 0.5 mWb in the core is ________ A.

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