Current flowing through a loop due to an infinite wire

Click For Summary
SUMMARY

An infinitely long wire carrying a 1 A current in the positive x direction influences a 5-turn circular loop located in the x-y plane. The magnetic field at the center of the loop is zero, indicating that no net current flows in the loop under these conditions. To induce a current in the loop, an alternating current (AC) must be present in the wire, as a direct current (DC) does not create a changing magnetic field necessary for inducing current in the loop.

PREREQUISITES
  • Understanding of Biot-Savart Law
  • Familiarity with Ampère's Law
  • Knowledge of magnetic fields and their effects on conductive loops
  • Concept of electromagnetic induction
NEXT STEPS
  • Study the principles of electromagnetic induction
  • Learn about alternating current (AC) and its effects on magnetic fields
  • Explore applications of Biot-Savart Law in different configurations
  • Investigate the relationship between current direction and magnetic field orientation
USEFUL FOR

Physics students, electrical engineers, and anyone interested in understanding the principles of electromagnetism and current induction in loops.

eatsleep
Messages
42
Reaction score
0

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?
 
Physics news on Phys.org
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?
 

Similar threads

Replies
4
Views
1K
  • · Replies 1 ·
Replies
1
Views
2K
Replies
8
Views
2K
  • · Replies 10 ·
Replies
10
Views
2K
Replies
2
Views
1K
Replies
17
Views
3K
Replies
3
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
Replies
3
Views
3K
  • · Replies 1 ·
Replies
1
Views
956