The figure below (please see attached picture) shows a long straight wire between the poles of a permanent magnet. It is connected through a switch to a battery so that, when the switch is closed, there is a steady current in the wire. (a) State the direction of the magnetic field between the poles of the magnet. (b) The wire is free to move. The current is switched on so that its direction is into the page. (i) State the direction of movement of the wire. (ii) Explain how you reached your answer to (b)(i). (c) This experiment is the basis of an electric motor.
The figure below (please see attached picture) shows a long straight wire between the poles of a permanent magnet. It is connected through a switch to a battery so that, when the switch is closed, there is a steady current in the wire. (a) State the direction of the magnetic field between the poles of the magnet. (b) The wire is free to move. The current is switched on so that its direction is into the page. (i) State the direction of movement of the wire. (ii) Explain how you reached your answer to (b)(i). (c) This experiment is the basis of an electric motor.
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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The figure below (please see attached picture) shows a long straight wire between the poles of a permanent magnet.
It is connected through a switch to a battery so that, when the switch is closed, there is a steady current in the wire.
(a) State the direction of the magnetic field between the poles of the magnet.
(b) The wire is free to move. The current is switched on so that its direction is into the page.
(i) State the direction of movement of the wire.
(ii) Explain how you reached your answer to (b)(i).
(c) This experiment is the basis of an electric motor.
Describe two changes to the arrangement shown in the figure that would enable continuous rotation to take place.
- change 1
- change 2
Transcribed Image Text:The figure below shows a long straight wire between the poles of a permanent magnet.
It is connected through a switch to a battery so that, when the switch is closed, there is a steady current in
the wire.
S
'wire in a direction
at right angles to the page
(a) State the direction of the magnetic field between the poles of the magnet.
(b) The wire is free to move. The current is switched on so that its direction is into the page.
(1) State the direction of movement of the wire.
(ii) Explain how you reached your answer to (b)(i).
(c) This experiment is the basis of an electric motor.
Describe two changes to the arrangement shown in the figure that would enable continuous rotation to
take place.
change 1
change 2
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