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a solenoid that is 85.0 cm long has a cross-sectional area of 17.0 cm2. there are 950 turns of wire carrying a current of 6.60 a. (a) calculate the energy density of the magnetic field inside the solenoid. (b) find the total energy stored in the magnetic field there (neglect end effects).

Sagot :

The magnetic field inside the solenoid has an energy density of 34.2 J/m3. A solenoid with a cross-sectional area of 17.0 cm2 and a length of 85.0 cm. A current of 6.60 is carried by 950 rounds of wire.

An electric charge, an electric current, and magnetic materials are all affected magnetically by a magnetic field, which is a vector field. A force perpendicular to the magnetic field and its own velocity acts on a moving charge in a magnetic field. A solenoid is a particular kind of electromagnet that produces a regulated magnetic field and is made of a helical coil of wire whose length is significantly higher than its diameter. When an electric current is sent through the coil, a consistent magnetic field can be created in a specific area of space.

u = B2Mo, u = (0.0092696)2/2*4*3.1416e-7, and u = 34.2J/m3.

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