ct_magflux - the solenoids magnetic field increases? A B Q...

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Lenz’s Law 1 A long, straight wire carries a steady current I . A rectangular conducting loop lies in the same plane as the wire as shown. Suppose the loop is pushed toward the wire. In what direction will the induced current flow in the loop? A. Clockwise. B. Counterclockwise. C. There is no induced current. D. Need more information.
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Bulbs around solenoid A solenoid produces a magnetic field (pointing out of the page) whose strength is increasing (left figure). This induces an emf in the wire surrounding the solenoid, which causes the bulbs A and B to light up. In the figure on the right, a short has been inserted between points P and Q. Compared to before, what happens as
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Unformatted text preview: the solenoids magnetic field increases? A B Q P A. Bulb A doesnt light; bulb B gets brighter. B. Bulb B doesnt light; bulb A gets brighter. C. Bulb A doesnt light; bulb B gets dimmer. D. Bulb B doesnt light; bulb A gets dimmer. E. Both bulbs are unlit. F. None of the above. Transformer A battery is connected to a transformer, as shown. When the switch is closed, the potential difference across R becomes A. E N 2 1 . B. C. D. +-N > N secondary primary...
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This note was uploaded on 04/18/2011 for the course PHYS 1112 taught by Professor Seaton during the Spring '08 term at University of Georgia Athens.

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ct_magflux - the solenoids magnetic field increases? A B Q...

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