Two parallel wires are distance apart 1) Choose the mass and length of the wire, and the distance between the wires 2) Draw the system 3) Set origin and axes 4) Solve for the current in the wires (assume they are the same)
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Two parallel wires are distance apart
1) Choose the mass and length of the wire, and the distance between the wires
2) Draw the system
3) Set origin and axes
4) Solve for the current in the wires (assume they are the same)
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- 5) Consider the diagram to the right. If the magnetic field is increasing, there will be an induced magnetic field and a current which runs in the wire. a Out of the page Clockwise b. Out of the page. Counter-clockwise. c. Into the page. Clockwise, d. Into the page. Counter-clockwise •1) When the switch in the circuit shown below is closed, a compass position underneath the wire deflects as shown. Battery Can make statements about the relationship between magnetic sources and magnetic fields Compass under wire What can you say about the direction of the current flowing through the wire? Scientific Abilities Missing Adequate No attempt is made to relate magnetic sources and magnetic fields The magnetic field, represented by B-field lines, is consistent with the magnetic sources. An explanation is given for how the two relate to one another. Scientific Abilities Can make statements about the relationship between magnetic sources and magnetic fields Top view Final Initial Scientific Abilities Can make statements about the relationship between magnetic sources and magnetic fields What direction would the compass point if it were placed on top of the wire instead of underneath it? Missing No attempt is made to relate magnetic sources and magnetic fields Inadequate An…QUESTION 11 The magnitude of a magnetic field a distance 3.0 um from a wire is 31.0 x 10-4 T. How much current is flowing through the wire. Assume the wire is the only contributor to the magnetic field. 30 mA 584 mA 47 mA 292 mA
- Question 2 The south pole of a permanent magnet is moved towards another object, causing the other object to move closer to the magnet. When the magnet is turned around, the other object continues to move closer to the magnet. The other object is: A magnetic material Another magnet, with the north pole facing the magnet Another magnet, with the south pole facing the magnet A non-magnetic materialTwo long wires lie in the plane of the screen and carry equal currents in opposite directions, as shown in the figure. At a point Pat the left of the two wires, the magnetic field 41 A) points into the screen. B) is zero points toward the bottom of the screen points out of the screen points toward the top of the screen10. Determine the direction of the magnetic force acting on each part of the conductor, then indicate which way the motor will turn (clockwise, counterclockwise, into page, out of page, etc.). Assume the diagram uses electron flow. a) b) S S N + N + I
- Magnetic field lines A) can easily be drawn within the subatomic structure of a magnetic atom. B) indicate which way a compass needle would point if placed near the magnet. C) are visible lines seen around magnets. D) can cross each other when the field is strong.Two wires are separated by a distance d. They both have a current I a) What is the force on wire 1) due to wire 2) if the currents are in the same direction? What is the direction of the B-field between them? b) What is the force on wire 1) due to wire 2) if the currents are in opposite directions? What is the direction of the B-field between them? c) Do either of these quantities change if I rotate the wires in the xy-plane?