The plane of a circular coil is horizontal. It has 10 turns each of 8 cm radius. A current of 2 A flows through it, which appears clockwise from a point vertically above it. Find the magnitude and direction of the magnetic field at the centre of the coil due to the current.

The plane of a circular coil is horizontal. It has 10 turns each of 8 cm radius. A current of 2 A flows through it, which appears clockwise from a point vertically above it. Find the magnitude and direction of the magnetic field at the centre of the coil due to the current.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 84AP: A circular coil of radius 5.0 cm is wound with five turns and carries a current of 5.0 A. If the...

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Concept explainers

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.

Question

The plane of a circular coil is horizontal. It has 10
turns each of 8 cm radius. A current of 2 A flows through it, which
appears clockwise from a point vertically above it. Find the magnitude
and direction of the magnetic field at the centre of the coil due to the
current.

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