The plane of a circular loop with radius 14 cm makes an angle 35 degrees with a uniform magnetic field of magnitude 0.1 T. a) What is the flux through the loop? -0.00504 Wb b) If the field reversed in direction, what is the change in flux? -0.01008 Wb
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- A proton and an electron enter a region of uniform magnetic field with a velocity oriented perpendicular to the field. Determine which of the following statements describes the circular orbits of the two particles. a. The two orbits have the same radius and the same direction. b. The two orbits have a different radius but the same direction. c. The two orbits have different radii and different directions. d. The two orbits have the same radius but different direction.a- An electric wire in the wall of a building carries a dc current of 1.5 A vertically upward. What is the magnetic field due to this current at a point P at a distance 20 cm due north of the wire. -20 cmA 1100-turn coil of wire 2.10 cm in diameter is in a magnetic field that increases from 0 T to 0.110 T in 9.00 ms. The axis of the coil is parallel to the field. You may want to review (Pages 849 - 851). For help with math skills, you may want to review: Rearrangement of Equations Involving Multiplication and Division For general problem-solving tips and strategies for this topic, you may want to view a Video Tutor Solution of Magnet and coil and light. Part A What is the emf of the coil? Express your answer to two significant figures and include the appropriate units. 0 O μà Value Submit Units Request Answer 2) ?
- 1) A straight, stiff, horizontal wire of length 48 cm and mass 28 g is connected to a source of emf by light, flexible leads. A magnetic field of 1.33 T is horizontal and perpendicular to the wire. Find the current necessary to float the wire, that is, find the current for which the magnetic force balances the weight of the wire. A Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question.M02MOI The strength of the magnetic field B at a distance r from a straight conductor carrying a current I is given by the expression B = 2лr where μo is the permeability of free space with the value 4 x 10-7 NA-2. Two long straight wires are lined up parallel to one another at a separation of 0.17 m. Currents of 4 A and 2 A flow through the wires, both in the same direction. Calculate the absolute value of the magnetic field strength due to the two wires at a point P on the mid-plane between them. Give your answer in micro Tesla (µT, 10-6).
- Identify the correct dimensions of magnetic flux. a) [M3 L2 A-1 T-2] b) [M L2 A-1 T-2] c) [M2 L2 A-1 T-2] d) [M L2 A-1 T2]A circular piece of wire with radius 0.79 m has a 28 T magnetic field passing through at an angle of 19 degrees away from normal. What is the magnetic flux through this ring?a.) A wire 4 m long has a mass of 224 g. The wire is connected to an emf. What is the minimum current in the wire that would allow it to levitate above the ground in a magnetic field of magnitude0.4 T? Round your answer to 2 decimal places b.) Per previous question, what direction must the current flow?
- Q2A wire is bent in to the shape shown below. If a current of I runs through the wire, what is direction and the magnitude of the magnetic field at the center of loop? R Hol B = 2R - Oa. Hol B = 2R - Ob. Hol B = 2R d. Hol B = 1+ 2R Oe.You have designed and constructed a solenoid to produce a magnetic field equal in magnitude to that of the Earth (5.0 x 10-5 T). If your solenoid has 400 turns and is 28 cm long, determine the current you must use in order to obtain a magnetic field of the desired magnitude. mA