Answered: the straight wire i

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Physics

the straight wire i

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter30: Magnetic Fields And Forces

Section: Chapter Questions

Problem 92PQ

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Concept explainers

Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.

Question

A metal wire is formed into a circle with a diameter of 10 cm, placed on a horizontal plane. Just above the center of the circle is a straight metal wire, infinitely long, parallel to the plane of the circle. The distance between the circular wire and the straight wire is 5 cm, and each wire is supplied with a direct current of 5 Amperes. The direction of current in the circular wire is rotating right, and the direction of current in the straight wire is from right to left

Graph the direction of the magnetic field vector at the center of the circle (called point A)!

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