Lesson: The Magnetic Field due to a Current in a Circular Loop of WirePhysics
In this lesson, we will learn how to calculate the magnetic field produced by a current in a circular loop of wire.
Sample Question Videos
A circular loop of wire is carrying a constant current in a clockwise direction as viewed from above. The current creates a magnetic field. Based on the diagram, state the direction of the magnetic field at the center of the coil.
A circular loop of wire of radius 50 mm carries a constant current A and produces a magnetic field of strength T at its center. Another circular loop of wire has a radius of 150 mm. Given that this wire also carries a constant current of A, which of the following correctly shows the relation between , the strength of the magnetic field produced by the larger loop, and ?
A circular loop of wire carries a constant current of 0.9 A. The radius of the loop is 13 mm. Calculate the strength of the magnetic field at the center of the loop. Give your answer in teslas expressed in scientific notation to 1 decimal place. Use a value of T⋅m/A for .