Podcast
Questions and Answers
What is formed around each point of the wire in a circular loop carrying current?
What is formed around each point of the wire in a circular loop carrying current?
According to the Right Hand Grip Rule, how is the direction of the magnetic field determined?
According to the Right Hand Grip Rule, how is the direction of the magnetic field determined?
When viewed from the end where the conventional current flows clockwise, what do the magnetic field lines do?
When viewed from the end where the conventional current flows clockwise, what do the magnetic field lines do?
In the context of the magnetic field created by a circular current, which rule correlates the direction of the current with the orientation of the magnetic field?
In the context of the magnetic field created by a circular current, which rule correlates the direction of the current with the orientation of the magnetic field?
Signup and view all the answers
How does each loop behave in terms of magnetic properties?
How does each loop behave in terms of magnetic properties?
Signup and view all the answers
Study Notes
Magnetic Field of a Circular Current
- A circular loop carrying current produces a magnetic flux pattern of closed curves around the wire
- The curves are nearly circular close to the wire.
Determining Magnetic Field Direction
-
Several methods exist for determining field direction in loops.
-
(i) Right Hand Grip Rule*
-
Applicable to a small element of a current loop. All other methods derive from this one.
-
(ii) Letter Rule*
-
Based on the 'S' and 'N' shapes in the diagram.
-
If the current flows clockwise when viewed from the end of the coil, the field lines inside the coil point away from the viewer (equivalent to an "S" pole).
-
(iii) Solenoid Rule*
-
Another right-hand rule.
-
If fingers curl in the direction of conventional current, the thumb points in the direction of the field inside the coil.
-
Each loop acts as a flat magnetic ring with a north and south pole face.
-
If the fingers of the right hand curl in the direction of the current, the thumb points toward the north pole face.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Explore the principles behind the magnetic field produced by a circular current loop. This quiz covers various methods for determining the direction of the magnetic field, including the Right Hand Grip Rule and others. Test your understanding of how these concepts apply to magnetic fields in electrical circuits.
