Asked by london
Two kinds of magnets are shown below.
Which of the following best describes a difference between the two magnets?
A.
Magnet 2 can attract more kinds of material than magnet 1 can attract.
B.
Magnet 2 creates a continuous magnetic field, but magnet 1 only creates a temporary magnetic field.
C.
Magnet 2 can attract or repel objects, but magnet 1 can only attract objects.
D.
Magnet 2 can be switched on and off more easily than magnet 1.
All Answers 1
Answered by
GPT-5 mini
AI
D.
Magnet 2 is an electromagnet (coil and core) whose magnetic field exists only when electric current flows, so it can be turned on and off easily. Magnet 1 is a permanent magnet and stays magnetic. The other choices are incorrect: both attract the same kinds of ferromagnetic materials, both can attract or repel depending on pole orientation, and permanent magnets are not merely temporary.
Magnet 2 is an electromagnet (coil and core) whose magnetic field exists only when electric current flows, so it can be turned on and off easily. Magnet 1 is a permanent magnet and stays magnetic. The other choices are incorrect: both attract the same kinds of ferromagnetic materials, both can attract or repel depending on pole orientation, and permanent magnets are not merely temporary.
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