The diagram below shows the position of a long, straight wire perpendicular to the page and a set of directions labeled A through H. When the current in the wire is directed out of the page, the direction of the magnetic field at point P is?
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Q: -R = 28.2 cm from on is the magnitude of t
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The diagram below shows the position of a long, straight wire perpendicular to the page and a set of directions labeled A through H.
When the current in the wire is directed out of the page, the direction of the magnetic field at point P is?
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- In the figure, point P, is at perpendicular distance R = 28.7 cm from one end of straight wire of length L = 14.6 cm carrying current i = 0.756 A. (Note that the wire is not long.) What is the magnitude of the magnetic field at P2? P R R L. Number i UnitsConsider the current-carrying wire shown in the figure. The current creates a magnetic field at the point P, which is the center of the arc segment of the wire. If 0 = 25.0°, the radius of the arc is 0.800 m, and the current is 4.00 A, what are the magnitude (in nT) and direction of the field produced at P? magnitude direction Jo into the screen nTSee McKi In the figure, four long straight wires are perpendicular to the page, and their cross sections form a square of edge length a = 17.5 cm. Each wire carries 7.50 A, and the currents are out of the page in wires 1 and 4 and into the page in wires 2 and 3. In unit-vector notation, what is the net magnetic force per meter of wire length on wire 4? H Number + Units
- Consider 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! 2nyIn the figure below, point P is at a perpendicular distance a = 13 cm from one end of a straight wire of length L = 15 cm carrying current I = 6 A. (Note that the wire is not long, or infinite.) What are the magnitude and direction of the magnetic field at P? For direction, you can say into or out of the page.A circular closed, conducting loop of radius r is in the presence of a uniform magnetic field that points into the page, shown in the figure below. The strength of the magnetic field changes as a function of time, which is described by the following expression: B(t) = B1t? + Bo. You may assume that B1 and Bo are both positive numbers. The direction of the magnetic field stays constant. The total resistance of the conducting loop is R. Use this information to solve parts (a) - (d). Write your answers in terms of known quantities such as: r, R, B1, Bo, and t. B(t) = B,t? + Bo %3D R r (a) Write an expression for the magnetic flux through the loop, assuming that the area vector of the loop points out of the page. Is the flux increasing or decreasing over time? (b) Determine the magnitude of the induced electromotive force driven through the loop. (c) Determine the magnitude of the induced current driven through the loop. (d) In which direction does the induced current flow (clockwise or…
- A 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.= 6.80 A and the wire lies in the plane of the rectangular loop, which carries a current I, = 10.0 A. The dimensions in the figure are In the figure below, the current in the long, straight wire is I, 0.100 m, a = 0.150 m, and { C = 0.420 m. Find the magnitude and direction of the net force exerted on the loop by the magnetic field created by the wire. magnitude direction to the leftUniform magnetic field points perpendicular out of the page. A wire carrying current I is placed in the magnetic field. What is the direction of magnetic force on electron #1 moving in the direction of the arrow next to it?