A small loop of wire of radius 2.0 cm is placed at the center of a wire loop with radius 22 cm. The planes of the loops are perpendicular to each other, and a 6.0-A current flows in each. Estimate the magnitude of the torque the large loop exerts on the smaller one. Express your answer using two significant figures. 15. ΑΣΦ X₂√x √x 4.11 10 Submit Previous Answers Request Answer Part B X Incorrect; Try Again; 5 attempts remaining What simplifying assumption did you make? ? X-10 0 m-N
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- A 550-turn solenoid is 12 cm long. The current in it is 38 A . A straight wire cuts through the center of the solenoid, along a 5.0-cm diameter. This wire carries a 23-A current downward (and is connected by other wires that don't concern us). Part A What is the force on this wire assuming the solenoid's field points due east?The earth's magnetic field, with a magnetic dipole moment of 8.0 x 1022 A m², is generated by currents within the molten iron of the earth's outer core. Suppose we model the core current as a 3000-km-diameter current loop made from a 1000-km-diameter "wire." The loop diameter is measured from the centers of this very fat wire. ▼ Part B What is the current density J in the current loop? Express your answer to two significant figures and include the appropriate units. J = Submit Part C Лоор Jwire μA Value Submit Request Answer To decide whether this is a large or a small current density, find the ratio of the current density J in the current loop to the current density of a 3.0 A current in a 1.0-mm-diameter wire. Express your answer using two significant figures. 17 ΑΣΦ VO Units Request Answer ? ?A 10 cm x 10 cm square is bent at a 90° angle. A uniform 5.70x10-2 T magnetic field points downward at a 45° angle.(Figure 1) You may want to review (Pages 843-845). For help with math skills, you may want to review: The Vector Dot Product Figure 45% 5 cm 18 B 1 1 of 1 5 cm 10 cm Part A What is the magnetic flux through the loop? Express your answer with the appropriate units. Value Submit HÅ Provide Feedback Units Request Answer □】?
- The distance between the wire and the circular current loop is r = 2.4 cm. (Figure 1) Figure O 2.0 A -Wire 0.20 A 1 of 1 2.0 mm What is the magnitude of the torque on the circular current loop? Express your answer with the appropriate units. T = Submit Part B μÀ Value Request Answer Units What is the loop's stable equilibrium position? ? O The dipole will be in equilibrium after rotating clockwise 135°. O The dipole will be in equilibrium after rotating clockwise 180°. O The dipole will be in equilibrium after rotating clockwise 45°. O The dipole will be in equilibrium after rotating clockwise 90°.A circular coil of wire 9.00 cm in diameter has 14.0 turns and carries a current of 2.70 A. The coil is in a region where the magnetic field is 0.570 T. For related problem-solving tips and strategies, you may want to view a Video Tutor Solution of Torque on a circular coil. Part A What orientation of the coil gives the maximum torque on the coil ? Express your answer as an angle in degrees between the field and the normal to the plane of the loop. o= Submit Part B Tmax = What is this maximum torque in part (A) ? Express your answer in newton-meters. Submit Part C ΑΣΦ Request Answer ز Submit ΑΣΦ Request Answer For what orientation of the coil is the magnitude of the torque 71.0 % of the maximum found in part (B)? Express your answer as an angle in degrees between the field and the normal to the plane of the loop. ? - ΑΣΦ Request Answer N m ?The magnetic field strength at the north pole of a 2.0-cm-diameter, 8-cm-long permanent magnet is 0.10 T. Part A To produce the same field with a solenoid of the same size, carrying a current of 1.8 A, how many turns of wire would you need? Express your answer to two significant figures. —| ΑΣΦ C ? Xb √x x x b Previous Answers Request Answer N = Submit xa S <४ IXI X 10n X turns
- A current loop in a motor has an area of 1.95 cm² . It carries a 240 mA current in a uniform field of 0.62 T. 1 Part A What is the magnitude of the maximum torque on the current loop? Express your answer with the appropriate units. T= BHA μÅ S Value → C Units ?Two long, parallel wires separated by 2.95 cm carry currents in opposite directions. The current in one wire is 1.45 A, and the current in the other is 3.20 A. (a) Find the magnitude of the force per unit length that one wire exerts on the other. 1.572e-5 Your response differs from the correct answer by more than 10%. Double check your calculations. N/mA compass needle points 19° E of N outdoors. However, when it is placed 12.0 cm to the east of a vertical wire inside a building, it points 35 ° E of N. The Earth's field is the same at both positions of the compass, it is 0.50×10-4 T and is horizontal. What is the magnitude of the current in the wire? Express your answer using two significant figures and include the appropriate units. I = Submit Part B Value east west up μÀ What is the direction of the current in the wire? down Request Answer Units ?
- The coil in a loudspeaker has 40 turns and a radius of 4.2 cm. The magnetic field is perpendicular to the wires in the coil and has a magnitude of 0.36 T. Part A If the current in the coil is 260 mA, what is the total force on the coil? Express your answer to two significant figures and include appropriate units. _O ■ Value μA Units ?Two long, parallel wires are separated by a distance of 0.400 m (see (Figure 1)). The currents I₁ and I2 have the directions shown. Figure 1₁ = 5.00 A ↑ 0.400 m 1₂ = 2.00 A 1 of 1 Part A Calculate the magnitude of the force exerted by each wire on a 1.20 m length of the other. Express your answer with the appropriate units. F = Submit Part B Part C F = Submit HA Value Request Answer Each current is doubled, so that I₁ becomes 10.0 A and I2 becomes 4.00 A. Now what is the magnitude of the force that each wire exerts on a 1.20 m length of the other? Express your answer with the appropriate units. Provide Feedback UA Value Units Request Answer ? Units ?As shown in the figure, a long wire carries a current i₁ = 30 A and a rectangular loop carries current i₂ = 20 A. Take the dimensions to be a = 1 cm, b = 8 cm, and L = 30 cm. In unit vector notation, what is the net force on the loop due to i₁? i₁ ią L x