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3 years ago

Which statement is true of magnets?

Physics

2 answers:

jonny [76]3 years ago

8 0

The answer would be B. Earth is an electromagnet.

The Earth is a giant electromagnet. It's electromagnetic field is generated from the currents of electricity coming from molten metal flowing in the outer core of our Earth. The heat from the inner core causes convection and that is how electric current flows within Earth.

Kamila [148]3 years ago

6 0

Earth us an electromagnet (apex)

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Answer:

4.5s

Explanation:

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The only thing you need to know in order to solve this task is that <span>plank length (which is force x), should equal the increase in potential energy, so what we have now : (mass)* g * (height).
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3 years ago

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aliya0001 [1]

PART A)

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PART B)

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Resistance inversely depends on the area so if a wire has more crossectional area then its resistance must be small

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here we know that

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