Opto Electronics – 13

13. When a phototransistor is reverse biased, is kept in dark condition, the current flowing through the device corresponds to :

(a) Zero current
(b) Reverse saturation current
(c) Maximum flow of device current
(d) Minimum flow of device current

Answer

Answer : (b)

Explanation

Explanation : No answer description available for this question. Let us discuss.

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Opto Electronics - 9
Opto Electronics » Exercise - 19. When a photodiode is reverse biased, and kept in a dark room, the current flowing through the device corresponds to : (a) Zero current (b) Maximum current the device can hold (c) Normal current that flows through the device (d) Reverse saturation current
Tags: current, device, opto, reverse, electronics, saturation, maximum, flowing, corresponds, dark
Opto Electronics - 35
Opto Electronics » Exercise - 135. A photo-diode is normally : (a) forward-biased (b) reverse-biased (c) Neither forward nor reverse biased (d) Emitting light
Tags: opto, electronics, exercise, reverse, biased, engineering
BJT - 17
555555555517. The magnitude of dark current in a phototransistor usually falls in what range? (a) mA (b) μA (c) nA (d) pA
Tags: dark, current, phototransistor, electronics, engineering
Opto Electronics - 32
Opto Electronics » Exercise - 132. When the light increases, the reverse current in a photo-diode : (a) increases (b) decreases (c) is unaffected (d) none of the above
Tags: opto, electronics, exercise, reverse, current, engineering
Opto Electronics - 31
Opto Electronics » Exercise - 131. A photo-diode is normally : (a) forward-biased (b) reverse-biased (c) Neither forward nor reverse biased (d) Emitting light
Tags: opto, electronics, exercise, reverse, biased, engineering

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