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Physics
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Permanent magnets are made from _______________.

A. paramagentic materials

B. diamagnetic materials

C. ferromagnetic materials

D. dielectric matierals

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Amana Rangarajan
Amana RangarajanLv9
14 Oct 2020
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22 Nov 2020

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

Figure CQ30.10 shows four permanent magnets, each having a hole through its center. Notice that the blue and yellow magnets are levitated above the red ones. (a) How does this levitation occur? (b) What purpose do the rods serve? (c) What can you say about the pole of the magnets from this observation? (d) If the blue magnet were inverted, what do you suppose would happen?

Which statement is true of magnets?

a) Earth is an electromagnet

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d) A permanent magnet can be turned off.

A parallel-plate capacitor with plates of area LW andplateseperation, t , has the region between its plates filledwithwedges of two dielectric materials as shown in Figure. Assume tismuch less than both L and W. (a) Determine its capacitance,(b)Should the capacitance be the same if the labels K1andK2 are interchanged? Demonstrate that youexpressiondoes or does not have this property. (c) Show that if k1andK2 approach equality to a common valueK1,you result becomes the same as the capacitance of acapacitorcontaining a single dielectric: C=kรŽยตoLW/t


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