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    Enery Stored in a Magnetic Field

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    An air-core solenoid with 63 turns is 8.00 cm long and has a diameter of 1.20 cm. How much energy is stored in its magnetic field when it carries a current of 0.780 A? (answer in µJ)

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    ^ denotes power
    E-06 means 10^ (-6)

    Diameter of the solenoid=d= 1.2 cm= 0.012 m
    Length of solenoid=l= 8 cm= 0.08 m
    Volume of the solenoid=V= pi d^2 l /4= 9.0478E-06 m^3

    The magnetic field inside a ...

    Solution Summary

    The solution calculates enery stored in a magnetic field.