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A 0.670 m long solenoid is formed by wrapping 480 turns of wire around a hollow...

A 0.670 m long solenoid is formed by wrapping 480 turns of wire around a hollow cylinder with a radius of 0.200 m. At the instant when the magnetic field in the interior is 0.480 T, calculate the energy stored in the field.

* Posted on here already and 5.1 kJ is wrong..

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Answer #1

energy density = B² Mo = 478107 density = (0.48)² 2x42x107 = 9.16x 10t J/m3 Energy in folenoid = energy density 1 x volume =

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