What Is the Direction of Current in a Loop Near a Current-Carrying Wire?

AI Thread Summary
The discussion revolves around determining the direction of current flow in a copper loop when it is moved toward a long current-carrying wire. The wire carries current from left to right, creating a magnetic field that influences the loop. The relevant equation for this scenario is emf = -d(magnetic flux)/dt, which relates to the change in magnetic flux through the loop. Participants are encouraged to analyze the magnetic field direction and apply the right-hand rule to ascertain the current's direction. Understanding these principles is crucial for solving the problem effectively.
kimberlyann9
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Homework Statement


You are holding a conducting loop of copper and looking at its circle. Behind it is a long current-carrying wire carrying the current from left to right. As you pull the loop toward you, what is the direction of current flow if any?

A)No way to tell
B)Counter-clockwise
C)the applied field is tangent to the loop
D)Clockwise
E)None at all


Homework Equations


emf=-d(magentic flux)/dt

Not too sure what to do here...
 
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kimberlyann9 said:

Homework Statement


You are holding a conducting loop of copper and looking at its circle. Behind it is a long current-carrying wire carrying the current from left to right. As you pull the loop toward you, what is the direction of current flow if any?

A)No way to tell
B)Counter-clockwise
C)the applied field is tangent to the loop
D)Clockwise
E)None at all


Homework Equations


emf=-d(magentic flux)/dt

Not too sure what to do here...

Welcome to PF, kimberlyann9! :smile:

What can you say about the direction of the magnetic field?

And how would you normally calculate a magnetic flux?
 

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