The energy stored in the magnetic field at a solenoid 30 cm long and 3 – McqOptions

MCQOPTIONS

1.	The energy stored in the magnetic field at a solenoid 30 cm long and 3 cm diameter wound with 1000 turns of wire carrying a current of 10A, is
A.	0.015 joule
B.	0.15 joule
C.	0.5 joule
D.	1.15 joule
Answer» C. 0.5 joule

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