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What is the principle of phototransistor?

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What is the principle of phototransistor?

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The principle of operation of a phototransistor is similar to a photodiode in combination with an amplifying transistor. The light incident on the base of a phototransistor will induce a small current. This current is then amplified by normal transistor action, which results in a significantly large.Mar 23, 2019

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