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Pie
3 years ago
8

A permanent magnet picks up an iron nail, magnetizing the nail. How is this system different from an electromagnet?

Physics
2 answers:
Marina86 [1]3 years ago
7 0

D

Its D i think because it doesnt refer to any other things

mote1985 [20]3 years ago
6 0

Answer:the nail is magnetized by a permanent magnet instead of by a solenoid with an electric current running through it

Explanation:

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According to another source this is what I got
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Answer:

c) True. factor four

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Let's apply this equation to the present case

 

If we double the electro field

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3 years ago
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Answer:

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So, [tex]QER = MV²/2{/tex} where R is the distance (range) the mass moves before it stops

Therefore {tex}R = MV²/2QE{/tex}

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