Faraday's law of induction deals with how a changing magnetic flux induces an emf in a circuit. Recall that magnetic flux depends on magnetic field strength and the effective area the field is passing through. We our investigation by looking at the field strength around a bar magnet. Position the magnet around the coil so that the region labeled A in the figure below is inside the coil. Move the magnet slowly back and forth and observe the effect on the brightness of the bulb and the needle of voltmeter. Repeat the same process for the other two regions. For which of the regions shown in the figure is the observed effect the strongest? O Region C O Region B The observed effect is the same for all three regions. O Region A Submit A Request Answer N S B C

Faraday's law of induction deals with how a changing magnetic flux induces an emf in a circuit. Recall that magnetic flux depends on magnetic field strength and the effective area the field is passing through. We our investigation by looking at the field strength around a bar magnet. Position the magnet around the coil so that the region labeled A in the figure below is inside the coil. Move the magnet slowly back and forth and observe the effect on the brightness of the bulb and the needle of voltmeter. Repeat the same process for the other two regions. For which of the regions shown in the figure is the observed effect the strongest? O Region C O Region B The observed effect is the same for all three regions. O Region A Submit A Request Answer N S B C

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

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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Figure 3 shows a straight wire carrying a current in upward direction. The wire is placed near a wire loop. For each case described below, answer the following questions: a) What is the direction of the magnetic flux through the loop? b) Is the magnitude of the flux through the loop increasing or decreasing with time? c) What is the direction of the magnetic field produced by the induced current in the loop? d) What is the direction of the current induced in the loop? Case 1: The current is increasing. Case 2: The current is decreasing. Case 3: The current is constant but the loop is being pulled away from the straight wire.
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Foroday's Low Cornea 6.0-mm-diameter coil 4. Experiments to study vision often need to track the movements of a subject's eye. One way of doing so is to have the subject sit in a magnetic field whille wearing special contact lenses with a coil of very fine wire circling the edge. A current is induced in the coil each time the subject rotates his eye. Consider the experiment shown in which a 20-turn, 6.0-mm-diameter coil of wire circles the subject's cornea while a 1.0T magnetic field is directed as shown. The subject begins by Eye looking straight ahead. What emf voltage is induced in the coil if the subject shifts his gaze by 5'5* in 0.20s?
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The current through the copper coil is clockwise. What direction is the magnetic field going Oin out up down Oleft right Submit Answer Tries 0/2 Where is the north magnetic pole? O in O out up down left right
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