Question
How are an electromagnet and a permanent magnet different from one another?
Responses
The strength of an electromagnet can be varied because its strength depends on the number of turns of conducting wire around a plastic core.
The strength of an electromagnet can be varied because its strength depends on the number of turns of conducting wire around a plastic core.
The strength of a permanent magnet is always greater than an electromagnet because it has two separate poles.
The strength of a permanent magnet is always greater than an electromagnet because it has two separate poles.
The strength of a permanent magnet is always greater than an electromagnet because it can create an electric current in the absence of a wire.
The strength of a permanent magnet is always greater than an electromagnet because it can create an electric current in the absence of a wire.
The strength of an electromagnet can be varied because the magnetic field depends on the flow of an electric current through the wire.
Responses
The strength of an electromagnet can be varied because its strength depends on the number of turns of conducting wire around a plastic core.
The strength of an electromagnet can be varied because its strength depends on the number of turns of conducting wire around a plastic core.
The strength of a permanent magnet is always greater than an electromagnet because it has two separate poles.
The strength of a permanent magnet is always greater than an electromagnet because it has two separate poles.
The strength of a permanent magnet is always greater than an electromagnet because it can create an electric current in the absence of a wire.
The strength of a permanent magnet is always greater than an electromagnet because it can create an electric current in the absence of a wire.
The strength of an electromagnet can be varied because the magnetic field depends on the flow of an electric current through the wire.
Answers
GPT 3.5
The strength of a permanent magnet cannot be easily changed because the alignment of its magnetic domains is fixed.