Pr2. A very long, straight current-carrying wire is bent at the middle two different ways, so that it takes the shapes depicted in figures a) and b). Find the direction and magnitude of the magnetic field in both cases at the center C of the semicircle (of radius R = 10 cm), if the current flowing in the wire is I = 2 A. a) b) C. C
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- Two long, straight wires cross each other at a right angle, and each carries the same current I . Which of the following statements is true regarding the total magnetic field due to the two wires at the various points in the figure? More than one statement may be correct. a.The field is strongest at points B and D. b.The field is strongest at points A and C. c.The field is out of the page at point B and into the page at point D. d.The field is out of the page at point C and out of the page at point D. e.The field has the same magnitude at all four points.A hydroxide ion (OH−) in a glass of water has an average speed of about 600 m/s. A. Determine the magnitude of the electrical force between the hydroxide ion (charge -e) and a positive ion (charge +e) that is 1.0×10−8 m away (about the separation of 30 atoms). B. Determine the magnitude of the maximum magnetic force that Earth's 3.0×10−5 T magnetic field can exert on the ion.A wire having a mass per unit length of 0.002 g/m carries an unknown current horizontally to the right. The wire is in a magnetic field of 0.10 T pointing into the page. a. Create a drawing and a free body diagram for this situation What current in the wire is needed in order for the wire to be in magnetic levitation?
- Two long, parallel wires are separated by 2.8 m. Each wire has a 32-A current, but the currents are in opposite directions. A. Determine the magnitude of the net magnetic field midway between the wires. B. Determine the magnitude of the net magnetic field at a point 1.4 m to the side of one wire and 4.2 m from the other wire. The point is in the same plane as the wires.Force on a Moving Charge: We observe that a moving charged particle experiences no magnetic force. From this we can definitely conclude that Group of answer choices A. either no magnetic field exists or the particle is moving perpendicular to the field. B. the particle is moving at right angles to the magnetic field. C. the particle must be moving parallel to the magnetic field. D. no magnetic field exists in that region of space. E. either no magnetic field exists or the particle is moving parallel to the field.1. A wire runs from north to south a. A compass needle placed above the wire points with its north pole toward the east. In what direction is the current flowing? b. If a compass is placed underneath the wire, in which direction will its needle point? 2. What will be the direction of the magnetic field if the current is due upward? 3. How does the magnitude of the current passing through the conductor affect the magnetic field?
- Pr2. A very long, straight current-carrying wire is bent at the middle two different ways, so that it takes the shapes depicted in figures a) and b). Find the direction and magnitude of the magnetic field in both cases at the center C of the semicircle (of radius R= 10 cm), if the current flowing in the wire is I = 2 A. а) b) C.Na+ B A horizontally moving positive sodium ion enters a magnetic field that points up. The magnetic force pushes the charge out of its original path. A. Into the page B. Out the page OC. To the left of the page D. There is not enough information to answer