Answered: Positive current (I) flows to the left…

Positive current (I) flows to the left as shown in the figure below. What is the direction of the magnetic field (B) at point A? A To the left Out of the page O To the right O Into the page B

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter12: Sources Of Magnetic Fields

Section: Chapter Questions

Problem 33P: A circuit with current I has two long parallel wire sections that carry current in opposite...

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Concept explainers

Bar Magnet

In physics, magnetism is a phenomenon exhibited by a magnetic substance that exerts either attractive or repulsive force. A bar magnet is either a rectangular or round and hollow fit comprised of ferromagnetic materials and has a fanciful attractive field surrounded by it.

Question

Positive current (I) flows to the left as shown in the figure below. What
is the direction of the magnetic field (B) at point A?
A
To the left
Out of the page
O To the right
Into the page

Expert Solution

Step 1

Introduction:

According to the right-hand thumb rule if the thumb indicates the direction of the current, then the fingers wrapped around the wire indicates the direction of the magnetic field.

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