In a PNP transistor, when the emitter junction is forward biased and the collector junction is reverse biased, which of the following statements is correct?
1
In a PNP transistor, current mainly flows due to electrons in the N-type base.
2
The depletion width of the N-type base is smaller than that of the P-type collector.
3
The collector current is the sum of the majority and minority currents.
4
The depletion region of the emitter junction increases as the applied voltage increases.