The energy stored in the magnetic field at a solenoid 100 cm long and – McqOptions

MCQOPTIONS

1.	The energy stored in the magnetic field at a solenoid 100 cm long and 10 cm diameter wound with 1000 turns of wire carrying an electric current of 10 A, is ___________
A.	1.49 J
B.	0.49 J
C.	0.1 J
D.	1 J
Answer» C. 0.1 J

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