A magnetic field of 37.2 T has been achieved at the MIT Francis Bitter Magnet Laboratory. Find the current needed to achieve such a field near the center of a solenoid with radius 2.40 cm, length 32.0 cm, and 40,000 turns.
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- Problem 17:A 5.3x10-2-T magnetic field passes through a circular ring of radius 2.8 cm at an angle of 18 ° with the normal.Keeping in mind that the magnetic permittivity of free space is μ0=12.56x10-7 T.m/A, how strong magnetic field you measure in the lab when 25 A current is applied to a coil with 400 turns/meter.
- In a solenoid in vacuum of length l = 10 cm with 2052 turns per meter the current creates the field B = 70 µT. What will be the value of the current if the solenoid is placed in an external uniform magnetic field Bext = 35 µT with field lines exactly opposite to the field produced by the solenoid? Assume µo = 4Tt × 10¬7 H/m and give your answer in milli-amperes (mA).For a solenoid in vacuum of length l = 10 cm with 10* turns per meter calculate the value of the current if the solenoid is placed in an external uniform magnetic field Bext = 35 µT with field lines exactly opposite to the field produced by the solenoid. Take vacuum permeability Ho = 4x x 10-7 H/m. Provide your answer in SI units. Answer:A solenoid that is 92.1 cm long has a cross-sectional area of 19.7 cm2. There are 1240 turns of wire carrying a current of 5.79 A. (a) Calculate the energy density of the magnetic field inside the solenoid. (b) Find the total energy in joules stored in the magnetic field there (neglect end effects).
- A solenoid is made of 500 turns of wire, length = 12 cm, radius = 3 cm, and carries a current of 15 amps. What is the magnetic field in the center if it has an air core? What is the magnetic flux through the solenoid? What would be the magnetic field if the air core was replaced with an iron core with K= 2000?A 52 cm long solenoid, 2.8 cm in diameter, is to produce a 0.050 T magnetic field at its center. If the maximum current is 2.5 A, how many turns must the solenoid have?Magnetic flux is measured in webers which can be expressed in units of V*s (V = volts). The magnetic flux was 14.993 V*s. What is the magnetic flux in kV*µs?