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How many electrons pass through a lamp in one minute, if the current is 300 mA ? |
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Answer» SOLUTION :`I=300mA=300xx10^(-3)A` `t="1 minute"=60s` `E=1.6xx10^(-19)C` `I=(q)/(t)=("ne")/(t)` `N=(It)/(e)=(300xx10^(-3)xx60)/(1.6xx10^(-19))=1.125xx10^(20)` |
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