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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
- When ultraviolet rays are incident on metal plate, then photoelectric effect
- An object is attached to the bottom of a light vertical spring and set vibrating.
- The current in the coil of inductance 5H decreases at the rate of 2 A/s
- A tuning fork of frequency 512 Hz makes 4 beats per second with the vibrating string
- In some region, gravitational field is zero. The gravitational potential
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