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For a phototransistor having gain of 116.5, wavelength of 1.28 μm, optical power 123μW. Determine collector current.

For a phototransistor having gain of 116.5, wavelength of 1.28 μm, optical power 123μW. Determine collector current. Correct Answer 0.0149 mA

The collector current is given by- Ic= G0λeP0/ hc, where h=Planck’s constant, Ic=collector current, λ=wavelength, P0=incident optical power.

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