A solenoid has 25 turns of wire and a length of 20 cm and supports a cument of 15 A The relative permeability of the core is 900. The magnetic induction at the centre is approximately 12.56 T 03.15T 05267 @42.12 T
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- A long solenoid that has 1,060 turns uniformly distributed over a length of 0.365 m produces a magnetic field of magnitude 1.00 10-4 T at its center. What current is required in the windings for that to occur???? mAA long solenoid that has 820 turns uniformly distributed over a length of 0.390 m produces a magnetic field of magnitude 1.00 x 10-4 T at its center. What current is required in the windings for that to occur? mA14
- How much energy is stored in the magnetic field of a 20.0-cm-long solenoid that has 156 turns and a radius of 0.950 cm and carries a current of 1.65 A?Calculate the energy associated with the magnetic field of a 175-turn solenoid in which a current of 2.25 A produces a magnetic flux of 3.81 x 10-4 T · m2 in each turn.A loop of highly conducting wire is placed in a magnetic field that is increasing out of the page (through the loop) at a rate of 1.80 T/s. If the loop has an area of 0.400m^2, calculate the current flowing in Amps through the 5.00 ohm resistor.
- 8. An electromagnet is made by inserting a soft iron core into a solenoid. The solenoid has 1800 turns, radius 2.00 cm, and length 23.5 cm. When 2.00 A of current flows through the solenoid, the magnetic field inside the iron core has magnitude 0.920 T. What is the relative permeability κB of the iron core?A long solenoid that has 1 040 turns uniformly distributed over a length of 0.380 m produces a magnetic field of magnitude 1.00 x 10 T at its center. What current is required in the windings for that to occur? mAA long solenoid has m = 400 turns per meter. Inside the solenoid and coaxial with it, there is a coil that has a radius of R = 6.00 cm and consists of a total of N = 250 turns of fine wire. (Hint: From Ampere's law the magnetic field of solenoid at the central part is B = number of turns per unit length and Ho HonI where n is the = 4n x 10 7 T.m/A). a) Assume that the resistance of R is decreased while the switch remains closed. Then, the current in the solenoid is increasing at a rate of 10 A/s. i. What emf is induced in the coil by the changing current? hp
- The figure shows four currents. The value of the line integral of the magnetic ficld B over the closed loop B.dl is 1°ri 8A solenoid is 15 cm long, has a radius of 5 cm, and has 400 turns. If it carries a current of 4 A, the magnetic energy stored in the solenoid is Group of answer choices 12.6 mJ 84.2 mJ 0.562 J 3.37 J None of these is correct.