AsterQuiz Transistor Essentials QuizOnline version Transistor basics by RAVIKUMAR.M MEC-AP/ECE 1 What is the primary function of a transistor in electronics? a To generate power independently b To amplify or switch signals c To store charge like a capacitor 2 Which configuration has the emitter as the common terminal? a Common-base b Common-collector c Common-emitter 3 In an NPN transistor, which carriers are majority in forward-active mode? a Electrons b Ions c Holes 4 What parameter is represented by beta (hFE) in a BJT? a Voltage gain b Power gain c Current gain 5 Which region of operation is used for active amplification in a BJT? a Saturation region b Forward-active region c Cutoff region 6 Approximately what is the base-emitter voltage drop for a silicon transistor in forward bias? a About 1.2–1.4 V b About 0.6–0.7 V c About 0.1–0.2 V 7 Which class of transistor is controlled mainly by base current? a Field-effect transistor (FET) b Metal-oxide semiconductor transistor (MOSFET) c Bipolar junction transistor (BJT) 8 In a common-emitter amplifier, what happens when you increase the base current? a Collector current decreases b Collector current increases (within limits) c Emitter current becomes zero 9 What is the other main transistor type besides BJT used widely for switching? a Field-effect transistor (FET) b Diode c Thyristor 10 Which parameter helps determine the collector current in active mode for a fixed base-emitter voltage? a Capacitance b Transistor gain (beta) c Inductance
