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When npn transistor is used as an amplifier
Options
(a) electrons move from base to collector
(b) holes move from emitter to base
(c) electrons move from collector to base
(d) holes move from base to emitter
Correct Answer:
electrons move from base to collector
Explanation:
When npn transistor is used as amplifier, majority charge carriers/electrons of n-type emitter travel from emitter to base and then from base to collector.
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Topics: Electronic Devices
(124)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Sound waves travel at 350m/s through a warm air and at 3500 m/s through brass
- Three solids of masses m₁,m₂ and m₃ are connected with weightless string
- The length of an elastic string is a metre when the longitudinal tension is 4N and b
- A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string
- Weight of a body of mass m decreases by 1% when it is raised to height h
Topics: Electronic Devices (124)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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wrong answer. ANswer is Holes move from base to emittor