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Part A When the switch is open, which ofthe following statements about the magnetic fuxthrough the wire loop is true? Assume that the direction ofthe vector area ofthe wire loop is to the right. There is no magnetic fuxthrough the wire loop There is a positive fuxthrough the wire loop. There is a negative fux through the wire loop. Submit Answers Give Up Correct When the switch is open, there is no currentfowing in the circuit.Thus, the electromagnetdoesnotproduce a magnetic field. and the fuxiszero Part B What is the direction of the induced current in the wire loop (as seen from the left when the switch is open? There is no induced current. The induced currentis The induced currentiis counterclockwise Submit Answers Give Up Correct Part C Now the switch on the electromagnetis closed. What is the direction ofthe induced current in the wire loop immediately after the switch is closed (as seen from the left? There is no induced current. The induced currentis The induced currentis counterclockwise. Submit Hints My Answers Give Up Review Part CorrectUnderstanding Changing Flux In this problem, you will use Lenzs law to explore what happens when an electromagnet is activated a short distance from a wire loop. You will need to use the right-hand rule to find the direction of the induced current. Figure 1 of 1 Switch open Part D Finally, the switch on the electromagnet is reopened. The magnitude of the extemal magnetic flux through the wire loop (A. increases, B. decreases, C. remains constant), and there is (A. zero B. a clockwise, C. a counterclockwise) current induced in the loop (as seen from the left). Enter the letters corresponding to the responses that correctly complete the statement above. For example, if the correct answers are A and C, type A,C Submit Hints My Answers Give Up Review Part Part E This question will be shown after you complete previous question(s). Part F

In this problem, you will use Lenz's law to explore what happens when an electromagnet is activated a short distance from a wire loop. You will need to use the right-hand rule to find the direction of the induced current.  


When the switch is open, which of the following statements about the magnetic flux through the wire loop is true? Assume that the direction of the vector area of the wire loop is to the right.  

There is no magnetic flux through the wire loop  

There is a positive flux through the wire loop.  

There is a negative flux through the wire loop.  


What is the direction of the induced current in the wire loop (as seen from the left when the switch is open?  

There is no induced current.  

The induced current is clockwise.  

The induced current is counterclockwise.  


Now the switch on the electromagnet is closed. What is the direction of the induced current in the wire loop immediately after the switch is closed (as seen from the left)?  

There is no induced current.  

The induced current is clockwise.  

The induced current is counterclockwise.  



Finally, the switch on the electromagnet is reopened. The magnitude of the external magnetic flux through the wire loop ___ (A. increases, B. decreases, C. remains constant), and there is ___ (A. zero, B. a clockwise, C. a counterclockwise) current induced in the loop (as seen from the left).  Enter the letters corresponding to the responses that correctly complete the statement above. For example, if the correct answers are A and C, type A, C

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Part A There is no magnetic flux through the wire loop Part B There is no induced current. Part C The induced current is coun

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