How is a permanent magnet different from a temporary magnet? A permanent magnet has poles. O 2. A permanent magnet attracts materials made of iron. O 3. A permanent magnet has a magnetic field. 4. A permanent magnet keeps its magnetism for a long time.

How is a permanent magnet different from a temporary magnet? A permanent magnet has poles. O 2. A permanent magnet attracts materials made of iron. O 3. A permanent magnet has a magnetic field. 4. A permanent magnet keeps its magnetism for a long time.

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter11: Magnetic Forces And Fields

Section: Chapter Questions

Problem 23P: An electron moving at 4.00103 m/s in a 1.25-T magnetic field experiences a magnetic force of...

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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

How is a permanent magnet different from a temporary magnet?
O 1.
A permanent magnet has poles.
O 2. A permanent magnet attracts materials made of iron.
O 3.
A permanent magnet has a magnetic field.
O 4.
A permanent magnet keeps its magnetism for a long time.

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