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Electronics — Physics STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 SciencePhysicsElectronics1 Mark
Question

When NPN transistor is used as an amplifier

(a) Electrons move from base to emitter

(b) Electrons move from emitter to base

(c) Electrons moves from base to emitter

(d) Holes moves from base to emitter
✓

Answer

(b) Electrons move from emitter to base

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