Current flowing through a loop due to an infinite wire

AI Thread Summary
An infinitely long wire carrying a 1 A current creates a magnetic field that affects a nearby 5-turn circular loop. If the magnetic field at the center of the loop is zero, it suggests that the magnetic effects from the wire and the loop are canceling each other out. For a current to flow in the loop, an alternating current (AC) would be necessary to induce a change in the magnetic field. The discussion highlights the need for clarity on the problem statement and diagram to fully analyze the situation. Understanding the relationship between the wire's current and the loop's response is crucial for solving the problem.
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Homework Statement


An infinitely long wire carrying a 1 A current in the positive x direction is placed along the x-axis in the vicinity of a 5-turn circular loop located in the x-y plane as shown in the figure. If the magnetic field at the center of the loop is 0, what is the direction and magnitude of the current flowing in the loop?

Homework Equations


Biot-Savat Law for the loop and amperes law for the wire

The Attempt at a Solution


I can calculate the magnetic field in the wire using amperes law, and same for the loop using the biot savat but if the magnetic field in the center is 0 is there any current flowing?
 
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eatsleep said:

Homework Statement


An infinitely long wire carrying a 1 A current in the positive x direction is placed along the x-axis in the vicinity of a 5-turn circular loop located in the x-y plane as shown in the figure. If the magnetic field at the center of the loop is 0, what is the direction and magnitude of the current flowing in the loop?

Homework Equations


Biot-Savat Law for the loop and amperes law for the wire

The Attempt at a Solution


I can calculate the magnetic field in the wire using amperes law, and same for the loop using the biot savat but if the magnetic field in the center is 0 is there any current flowing?

To induce a current in the loop, there would have to be an AC current flowing in the wire. Can you post a scan of the actual problem statement and diagram?
 
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