A solenoid of 2000 turns, area 4 cm2, and length 30 cm carries a current of 4.0
Question:
A solenoid of 2000 turns, area 4 cm2, and length 30 cm carries a current of 4.0 A.
(a) Calculate the magnetic energy stored in the solenoid from ½LI2.
(b) Divide your answer in part (a) by the volume of the solenoid to find the magnetic energy per unit volume in the solenoid.
(c) Find B in the solenoid.
(d) Compute the magnetic energy density from um = B2/2μ0, and compare your answer with your result for part (b).
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a Using Equation 309 to find L U m 12 LI 2 ...View the full answer
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