Multiple Choice
Boron is classified as which type of magnetic material under ordinary conditions?
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28. Magnetic Fields and Forces
Magnets and Magnetic Fields
Struggling with Physics?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which part of Earth is primarily responsible for generating Earth’s magnetic field?
A
Earth’s crust, because most magnetic minerals are located near the surface
B
Earth’s mantle, because moving rock creates strong electric currents
C
The liquid outer core, where convecting molten iron drives a geodynamo
D
The solid inner core, because it is a permanent magnet
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