A transistor is a current controlled device because_______________(a) In the base region movement of charge carrier is because of the electrons which are minority charge carrier in the base region(b) In the collector region movement of charge carrier is because of the electrons which are minority charge carrier in the collector region(c) In the base region movement of charge carrier is because of the holes which are majority charge carrier in the base region(d) In the collector region movement of charge carrier is because of the holes which are majority charge carrier in the base regionI have been asked this question during an online exam.My doubt stems from Active and Passive Devices in division Diode Circuit of Analog Circuits

A transistor is a current controlled device because_______________(a)

1.	A transistor is a current controlled device because_______________(a) In the base region movement of charge carrier is because of the electrons which are minority charge carrier in the base region(b) In the collector region movement of charge carrier is because of the electrons which are minority charge carrier in the collector region(c) In the base region movement of charge carrier is because of the holes which are majority charge carrier in the base region(d) In the collector region movement of charge carrier is because of the holes which are majority charge carrier in the base regionI have been asked this question during an online exam.My doubt stems from Active and Passive Devices in division Diode Circuit of Analog Circuits
Answer» The correct choice is (a) In the base region movement of charge carrier is because of the ELECTRONS which are minority charge carrier in the base region The explanation is: In the base region movement of charge carrier is because of the electrons which is minority charge carrier in the base region. So, a BJT can said to be minority current CONTROLLED DEVICE. Base current flows between base and emitter in the BJT to induce a larger current flow between emitter and COLLECTOR.

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