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What is the energy stored in the magnetic field at a solenoid of 40 cm long and 4 cm diameter wound with...
What is the energy stored in the magnetic field at a solenoid of 40 cm long and 4 cm diameter wound with 100 turns of wire carrying a current at 20A?
(A) 0.705 Joule (B) 0.789 Joule (C) 0.587 Joule (D) 0.658 Joule
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