A one cubic cm of copper has how many free electrons at room temperature?
80 × 10^18
8.5 × 10^22
20 × 10^10
50 × 10^20
Correct Answer :
B. 8.5 × 10^22
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A one cubic cm of copper has how many free electrons at room temperature?
80 × 10^18
8.5 × 10^22
20 × 10^10
50 × 10^20
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excess of protons
excess of electrons
deficit of neutrons
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inversely proportional to
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neutral
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Gilbert
Maxwell
Oersted
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directly proportional to
inversely proportional to
dependent of
independent of
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becomes sixteen times
remains the same
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1.5 x 10^-19
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