Which feature of electromagnets makes them more useful than permanent magnets in many modern technologies?

Q: Name one device that uses an electromagnet.

A: Electromagnet is a type of magnet in which the magnetic field is produced by an electric current.…

Q: An electron moves at a velocity of 8.15 x 10^6 m/s in a direction perpendicular to a magnetic field…

A: Given data *The velocity of the electron is v = 8.15 × 106 m/s *The given magnetic field strength is…

Q: Part A For the vectors shown in the figure, determine (Eigure 1) the magnitude of B-3A Express your…

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Q: Can you produce current from a magnet and vice versa?

A: Michel Faraday’s experiments on a magnet and a loop of wire explained the relation between…

Q: Credit cards have a magnetic strip that encodes information about the credit card account. Why do…

A: The device that reads credit cards magnetic strips is based on the principle of magnetic…

Q: What is the relationship between voltage and magnetic field strength in an electromagnet?

A: Given:- What is the relationship between voltage and magnetic field strength in an electromagnet?…

Q: Please help me answer this question. When a straight wire carrying a current is placed in a uniform…

A: Option D is correct. When a current carrying wire is placed in a magnetic field which is parallel to…

Q: What magnetic pole is at that location? Why?

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Q: How are magnetic poles and electrical charges similar?

A: The magnetic poles produce an attractive force between poles of opposite nature, also the electric…

Q: An electron moves at a velocity of 4.34 x 10^6 m/s in a direction perpendicular to a magnetic field…

A: Given data:  Velocity (v) = 4.34×106 m/s Angle (θ) = 90° Magnetic field (B) = 1.15 T Required: The…

Q: If you place a metal ring in a region in which a magnetic field is rapidly alternating, the ring may…

A: Given: A metal ring

Q: How to use a battery and loops of conductors to behave exactly like a bar magnet

A: Given How to use a battery and loops of conductors to behave exactly like a bar magnet, as following…

Q: Estimate how powerful a magnet must be to leviate a human. Assume the person to be levitated weighs…

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Q: Which properties of magnetic fields and poles are similar to properties of electric field and…

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Q: What are the two distinct characteristics that a magnet possesses?

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Q: Describe in detail the effects of a magnetic field on a current-carrying wire.

A: Electric energy is carried in the form of current, which is the flow of electrons through a…

Q: Why does a piece of iron in a current-carrying loop increase the magnetic field strength?

A: The piece of iron in a current-carrying loop increases the magnetic field of an electro magnet.

Q: What are the two distinct characteristics that a magnet

A: two distinct characteristics that a magnet possesses.

Ferromagnetism

Ferromagnetism is a mechanism by which some materials show magnetic properties. Iron and magnetite, an oxide of iron, are two naturally occurring materials that show the property of ferromagnetism. The word ferromagnetism is derived from the Latin name of iron, "Ferrum" as it was the first observed material to show such property. The property of ferromagnetism is shown by only a few substances such as iron, nickel, cobalt, and their alloys. Some transition metals and alloys of rare-earth metals also show ferromagnetism.