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In Physics / High School | 2014-07-07

How many electrons flow through the filament of a 120V, 60W lamp in 1 second?

Asked by ZacharySymonds

Answer (2)

P = U . i 60 = 120 i i = 0.5 A i = t Δ Q ​ Δ Q = i . t Δ Q = 0.5 C Q = n . e n = e Q ​ n = 1.6 ∗ 1 0 − 19 0.5 ​ = 0.3125 ∗ 1 0 20 = 3.125 ∗ 1 0 21 e l ec t ro n s

Answered by Ryan2 | 2024-06-10

Approximately 3.125 x 10^18 electrons flow through the filament of a 120V, 60W lamp in 1 second. This is calculated by first finding the current from power and voltage, then determining the total charge, and finally converting that charge to the number of electrons. The calculation uses the formulas for electrical power and charge flow.
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Answered by Ryan2 | 2024-12-23

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