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How many electrons pass through a lamp i...

How many electrons pass through a lamp in 1 min, if the current is 300 mA. `[" Given ,charge of a electron = "1.6 xx 10^(-19)C]`

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Given , I = 300 mA = 0.3 A, `e = 1.6 xx10^(-19)C` ,
t=1 min = 60 s and n = ?
` :. ` Current , I `=("ne")/t` (1)
` :. `Number of electrons
`n = (It)/e = (0.3 xx 60)/(1.6 xx10^(-19)) = (18)/(1.6) xx10^(19) = 1.125 xx10^(20)` (1)
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