Four long straight wires carry identical currents of i = 2.0 A perpendicular to the plane of the page as shown in the figure. d If d = 8.0 m, what is the magnitude of the magnetic field at the origin? Express your answer in T, to at least one digit after the decimal point.
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- An electron moves along the z-axis with v₂ = 4.7 x 107 m/s. As it passes the origin, what are the strength and direction of the magnetic field at the following (x, y, z) positions? Part A (1 cm, 0 cm, 0 cm) Express your answers using two significant figures.Enter your answers numerically separated by commas. Br, By, B₂ = Submit Part B VE ΑΣΦ Request Answer Ba, By, B₂ = Submit (0 cm, 0 cm, 1 cm) Express your answers using two significant figures. Enter your answers numerically separated by commas. IVE| ΑΣΦ ? Request Answer T ? TA conductor consists of a circular loop of radius R = 16.0 cm and two long, straight sections as shown in the figure below. The wire lies in the plane of the page and carries a current I = 1.2 A. Find the magnitude of the magnetic field (in μT) at the center of the loop. Round your answer to 2 decimal places.The figure shows a cross section of several conductors carrying currents through the plane. The currents have the magnitudes l₁ = 4 A, 1₂ = 6 A and 13 = 2A. The directions of the currents is shown at the picture. Four paths labeled a through d are shown. What is the line integral of the magnetic field across each path? Each integral involves going around the path in the counter clockwise direction. 1. What is the line integral of the magnetic field across path a? Enter the missing part in the expression Ho 2. What is the line integral of the magnetic field across path b? Enter the missing part in the expression Ho'l 3. What is the line integral of the magnetic field across path c? Enter the missing part in the expression Hol 4. What is the line integral of the magnetic field across path d? Enter the missing part in the expression Ho 110 b 120 d ) ) ) )
- A current of 5.72 A flows along a wire with = (1.382 - 2.095 ) m. The wire resides in a uniform magnetic field B = (-0.350 +0.700 ) T. What is the magnetic force acting on the wire? (Express your answer in vector form.) NConsider a short wire of length L, carrying a current I to the left. Define coordinates so that the wire is along the à axis, the current flows in the - direction, the y axis is vertical in the plane of the page and the 2 axis points out of the page. Which of the following expressions is an ap- proximate expression for the magnetic field at a point P on the y axis very close to the wire, i.e. a distance y < L below the mid- point of the wire? 1. B= 2(y2 + L2) O 2. B 0 3. B Hol 2ny Hol 4Vy2 + L² 4. B = Hol 4Ty 5. B = %3D O 6. B=-00 O, B = 47 (y2 + L2) 8. B = 27 Vy? + L2 40IL 2ny? 9. B = 10. B – _ 40! 2nyA current i = 2.0 A flows in a long straight wire and in a circular loop as indicated in the figure below. If the distance a = 3.0 cm, what is the magnitude of the magnetic field at point P at the center of the loop? Express your answer to the nearest µT.
- Chapter 28, Problem 020 An electron is accelerated from rest through potential difference V and then enters a region of uniform magnetic field, where it undergoes uniform circular motion. The figure gives the radius r of that motion versus V¹/2. The vertical axis scale is set by rs= 4.0 mm, and the horizontal axis scale is set by V¹/2= 32.9 V¹/2. What is the magnitude of the magnetic field? r (mm) VI/2 V¹/2 (¹/2)As shown in the a figure below, a straight wire carries an I = 9.97 A current along the positive y-direction, in the presence of an external uniform magnetic field B = 0.403 - 0.70k, where the units of the magnetic field are in T. If the wire experiences a force of magnitude 2.13 N as a result of the external magnetic field, how long is the wire, in units of meters? Please enter only the numerical value, and keep it to two decimal places, i.e., X.XX, and do not include units. kx z ₁ IFour long, parallel conductors carry equal currents of I = 8.00 A. The figure shows a cross-sectional view of the conductors. The direction of currents is into the page for wires A and B and out of the page for wires C and D. Calculate the magnitude of the resulting magnetic field (in μT) at point P, located at the center of the square of edge length 0.400 m. Round your answer to 2 decimal places.