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3 years ago

6

What elements are good conductors of electricity?

1 answer:

kramer3 years ago

6 0

In solids: All metals are good conductors of electricity as they contain free moving electrons. Non-metals doesn't conduct , but we consider Graphite the only non-metal that can conduct electricity for the presence of free moving electrons.

In Liquids ; Ionic compunds contains free moving ions , so they conduct electricity as well .

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An iron sphere of radius 0.18m has mass 190 kg. Calculate the density of the iron

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Explanation:

(a)

The expression for the impedance is as follows:

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(b)

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Calculate the resistance by rearranging the above expression.

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(c)

The expression for the impedance is as follows;

$Z^{2}=R^{2}+X_{L}^{2}$

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Put $Z=183.33\Omega$ and $R=38.89\Omega$ .

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