metal bombarded 7.20×10^13 photons each second

The charge of an electron is –1.602×10^(-19) C.

For the photoelectric effect,

how many microamperes (1 A = 1 C/s) of electrical current are produced

when a metal is bombarded by 7.20×10^13 photons each second?

Assume that each photon has sufficient energy to eject one electron.

(Note currents are reported as positive values.)

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Assume that each photon has sufficient energy to eject one electron.

---> 광자 1개 충돌하면, 전자 1개 방출.

---> 방출 전자의 개수 = 7.20×10^13 /s

전자 1개의 전하량 = 1.602×10^(-19) C

electrical current

= (7.20×10^13 /s) (1.602×10^(-19) C)

= (7.20×10^13) (1.602×10^(-19))

= 1.15×10^(-5) C/s

= 1.15×10^(-5) A

1.15×10^(-5) A × (10^6 μA / 1 A)

= 1.15×10^(-5) × (10^6)

= 11.5 μA

답: 11.5 μA

[키워드] how many microamperes (1 A = 1 C/s) of electrical current are produced when a metal is bombarded by ×10^13 photons each second?